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DFIC professionalize on manufacturing all kinds of flat-rack and convertible fact-rack container. Flat Rack Containers are a type of special purpose containers with walls only on the short end. Due to different dimensions or abnormal loads, these flat rack shipping containers are used when the cargo must be loaded from the top or sides such as cars, oversize machine and other special merchandises. FLAT RACK CONTAINER DIMENSION Flatracks container can be collapsible or non-collapsible, and they can have walls or not. Their measurements, however, remain roughly the same. The common flat rack container size includes 20ft and 40ft, and other special sizes can be customized by DFIC. Size & TYPE Internal Weights Cubic Capacity（M³) Length Width Height Tare Weight Max Payload 20'FT Flatrack Container 5.94m/19.5ft 2.35m/7.7ft 2.35m/7.7ft 2,360kg /5,203.8 lbs 30,140kg /66,458.7 lbs 32.7m³/1,154.3 cu ft 40'FT Flatrack Container 12.13m/39.8ft 2.35m/7.9ft 2.14m/7ft 40,000kg /88,200 lbs 40,000kg /88,200 lbs 62.2 m³/2,195.7 cu ft WHAT IS A FLAT RACK CONTAINER DFIC manufactured flat rack container for sale is typically used for the transport or storage of cargo with irregular dimensions. Flat racks only have sides on the short side of the container, known as the bulkheads, allowing the cargo to protrude from the side of the container during transportation. Flat rack high cube containers are typically available in two sizes: 20 feet and 40 feet. The choice is determined by the size of the cargo. Typically, the only difference between these two types is their length. FLAT RACK CONTAINER WEIGHT CAPACITY There is no limit to the flat rack container loading because they don't have side or top walls like regular dry container. Flat racks are used to transport oversized cargo such as breakbulk cargo, construction equipment, cranes, pipes, windmills, automobiles, steel, glass, sugarcane, and so forth. FLAT RACK SHIPPING CONTAINER PRICE Flat rack shipping container for sale has the most reasonable price and great quality, and is mainly manufactured in Shanghai, Qingdao, and Jinzhou. As different kinds of ship carrying containers, the flat-rack and convertible flat rack prices will be different since the material and cost are different. For more flat rack container price information, please consult with our sales. DFIC provides side opening shipping container for sale, side opening container, pallet-wide container, etc. For more information, please feel free to contact us!

DFIC has a mature production line for 45 ft containers. We can produce large scale of 45 foot shipping container of this size per day. Container 45 feet is mainly used for loading and sea transportation of large goods. At present, our main customers are South Korea, the United States and Canada in relatively stable demand. 45 FEET HIGH CUBE CONTAINER SIZE The 45ft high cube dry container length is 13716 mm with 2438 mm wide and 2896mm height. The internal size of 45ft high cube shipping container is 13556mm X 2352 mm x 2689mm. The 45ft container Max Gross weight is 32500kg. 45 FT SHIPPING CONTAINER FOR SALE 45ft high cube container for sale is mainly shipped by COSCO liner or bulk vessel, per the different structure with ISO containers, DFIC will use the special tools during the transportation. Also, as the larger volume than ISO containers, we can ship them in loading cargoes to save the cost. DFIC provides side opening shipping container for sale, side opening container, flatrack container, etc. For more information, please feel free to contact us!

DFIC is capable to manufacture high-quality 20HC shipping container with best price. The 20′ HC container is a larger version of the popular 6m container and smaller than 40ft. The 20 foot high cube container is approximately 30 cm taller than a standard 20GP container. A secure, weather-resistant, and dependable solution for almost any situation. 20 HC CONTAINER DIMENSIONS A 20ft hc container dimensions are as follows: Exterior Dimensions (in feet): 20' long x 8' wide x 8' 6" high. Dimensions (in meters): 6.10m long, 2.44m wide, and 2.59m high. Interior measurements (in feet): 19'4" long x 7'9" wide x 7'10" high. Exterior lnterior Capacity Length: 20ft. Length: 19ft. 4in. Gross: 67,197 lbs Width: 8ft. Width: 7ft.7in. Payload:62,567 lbs Height: 9ft. 6in Height: 8ft.8in. Tare Weight: 4,630 lbs DFIC provides side opening shipping container for sale, side opening container, special container, etc. For more information, please feel free to contact us!

The 20ft side opening shipping container can be fully opened and it has double doors at the end. This practical container differs from a traditional container due to its door structure. One long 6 m side of the container can be opened. The side door is usually 4-leaf door that opens in 2 sections. The 20′ Open Side Container is an ISO-compliant container that can be used for storage or freight (CSC). The floor material in the containers is plywood or bamboo and they come with standard ventilation valves. All doors are lockable with a padlock and our rental containers are equipped with a welded protective case. 20 ft container with side doors are very practical when you need a space solution that can be implemented quickly, for example for a trade fair, a pop-up store, a performance stage or a promotional space. This open side container’s double doors and the opening side can be locked with padlocks, so you can leave all your belongings in the 20ft open side shipping container after the event and continue the next day without any extra moving of the goods. The model is also very popular for project use when you need to load from the side with a forklift or need space for equipment, making installation very easy. DFIC provides side opening shipping container for sale, side opening container, dry freight container, etc. For more information, please feel free to contact us!

Descrition of SK230-6E YN35V00041F1 Solenoid Valve for Kobelco Excavator: Application: Excavator Part name: Solenoid Valve Material: Steel Model:< , br> SK 200-6 SK 200-6e MOQ: 1PC Warranty: , 3 months Payment term: T/T&Western Union &Paypal Delivery Time: Within 2 days after receiving the payment Part No.: YN35V00041F1 Packing: St , andard shipping package Specifications: * Widely used in construction machines * High quality and reliable * Over 25 years of industry experience Packaging & Shipping: Packaging: Customized packing provided Delivery time: 1-2 days after received the payment

Audfly directional wall speakers are waterproof and have a high sound pressure level to meet the complex demands of outdoor noisy environments. Directional in wall speakers are suitable for all mounting solutions, including wall-mounted, ceiling-mounted, or integrated into monitors, etc. Audfly includes all the hardware required for installation, including the adjustable stand, in the packing list. Which Directional Wall Mounted Speaker is Right for You? Audfly B2 Directional Speaker & Directional Sound Amplifier Audfly Model B is an ultrasonic directional speaker that provides you with high-quality and highly focused audio to a specific area, without disturbing the others around you. Audfly B1 Directional Ultrasonic Parametric Speaker Audfly Model B is an ultrasonic directional speaker. It transmits a very focused sound beam audio to listeners by making use of ultrasonic carrier waves. Audfly Directional Wall Mounted Speaker Installation Guide  Wall Mounted VS. Ceiling Mounted Directional Speaker Audfly provides both wall mounted directional speakers and ceiling mounted directional speakers to meet clients' different choices. Both their audio transmission quality is great, and welcome to share us your target scenario information and photo, Audfly will share you our engineers' suggestions about the mounted type and suitable directional sound speakers' model.

Audfly ceiling mounted directional speakers are specially designed for ceiling installation scenarios, usually used in indoor scenarios. It can direct sound to certain areas in a special way and keep other areas quiet, ideal for galleries, libraries, museums, exhibition halls, etc. Which Ceiling Mounted Directional Speaker is Right for You? Audfly R2 Ceiling Speakers Round For Museum Audfly Model R2 Directional speaker is great for directing audio to certain spots in open areas like museums, libraries, supermarkets, shopping malls, restaurants, fairs, trade shows, etc. Audfly R1 Ceiling Mounted Directional Speakers Audfly Model R1 is a hyper directional audio speaker that enables direct sounds to specific spots, capable of producing high-quality focused sound even in noisy environments. R Ceiling Speaker Installation Guide  The Ceiling Mounted Directional Speakers Stay Hidden Audfly ceiling mounted directional speakers add a special aesthetic to the room, add to that the fewer cables, that's awesome. You will experience this unique directional focusing audio when you use directional ceiling speakers. The sound you hear is clear and directional, just as you can normally experience when wearing headphones.

Audfly offers customization services to integrate loud ultrasonic speaker into the products you need, and our designers can customize a solution to meet your color, installation and technical needs. Audfly Customized Directional Speaker Model FSC2-L1-F or customized model Maximum Sound Pressure Level (Volume) 88±3dB@1m/2KHz or customized Directivity Angle <15°(-20dB) Frequency Range 500Hz-13kHz Rated Power 58W Input Sensitivity 1 Vrms Max Input 2.8Vpp Input Interface 3.5mm AUX/RCA Power Requirements 24V DC/3A Dimension 926*118*36mm or tailored Weight 2.45 kg or adjustable Installed Accessories 75*75mm Universal Bracket Surface Treatment/Color Black/White or customized Status Indicator Power Signal Power Adapter (Input) 110-220Vac 50/60H (Output) 24V DC/3A Matching Power Amplifier Size 183*167*45cm or built-in type Functions of Customized Directional Speaker Flexible Install Type: Ceiling mounted and Wall mounted or based on clients' demand. Applicable to Multiple Scenarios: Almost all the scenarios you need for audio directive transmission usage, such as digital signage, airport or museum, etc. Super Directional Transmission: Create focused audio zones in certain area without increasing the overall ambient noise level. We provide parametric loudspeaker, Long range directional speaker, ultrasonic directive speaker, parametric speaker for sale, etc. For more information, please feel free to contact us!

Flanged bronze ball valve has the same action of rotating 90 degrees, the difference is that the cock body is a sphere, with a circular through hole or channel passing through its axis. The bronze copper ball valve is mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. It only needs to rotate 90 degrees and a small torque to close tightly. Bronze ball valve are most suitable for use as on-off and shut-off valves, but recent developments have designed ball valves to throttle and control flow, such as V-shaped ball valves. 　　 As one of the leading bronze ball valve manufacturers, Carbo produces great quality China bronze ball valve. Compared with brass ball valve, the main characteristics of the 3 way bronze ball valve are its compact structure, reliable sealing, simple structure, and convenient maintenance. The sealing surface and the spherical surface are often in a closed state, which is not easy to be eroded by the medium. It is easy to operate and maintain. It is suitable for water, solvents, acids, and natural gas. The working medium is also suitable for the medium with harsh working conditions, such as oxygen, hydrogen peroxide, methane, and ethylene, etc., which are widely used in various industries. The aluminium bronze ball valve body can be integral or combined. Different Bronze Ball Valve Sizes Available Products Material Pressure Operating   Temperature P/N DN SIZE A H L D N CB-1850 Ball Valve Bronze 400psi -20℃≤T≤120℃ 18501 15 1/2" 79.6 46 56 / / 18502 20 3/4" 79.6 50 64 18503 25 1" 90.75 59 78.4 18504 32 11/4" 93 65 85 18505 40 11/2" 163.8 78.2 93.8 18506 50 2" 163.8 88 107.1 CB-1850T Ball Valve Bronze 400psi -20℃≤T≤120℃ 18501 15 1/2" 79.6 46 60 / / 18502 20 3/4" 79.6 50 70 18503 25 1" 90.75 59 82.3 18504 32 11/4" 93 65 93 18505 40 11/2" 163.8 78.2 102.1 18506 50 2" 163.8 88 115 CB-1233 Ball Valve Bronze 400psi -20℃≤T≤120℃ 12331 1/2" 70 32.5 65 12 9 12332 3/4" 95 48.5 71 17 13.5 12333 1" 108 64 95 21.8 18.2 CB-1234 Ball Valve Bronze 400psi -20℃≤T≤120℃ 12342 20 3/4" 66.5 71.1 / / 12343 25 1" 69.6 77 12344 32 1 1/4" 92.9 98.5 12345 40 1 1/2" 100.5 114 12346 50 2" 109 129 CB-1250 Ball Valve Bronze 400psi -20℃≤T≤120℃ 12501 15 1/2" / 97.3 60.2 20.6 / 12502 20 3/4" 113.6 69 25.6 12503 25 1" 124.2 73.4 33 12504 32 1 1/4" 149.2 91.5 41 12505 40 1 1/2" 161.9 99.5 51 12506 50 2" 188.6 107 64 CB-1240 Ball Valve Bronze 400psi -20℃≤T≤120℃ 12401 12.5 1/2" / 24.6 56.3 / / 12402 19 3/4" 29.1 69.8 12403 25 1" 37.3 88 How To Repair A Leaking Bronze Ball Valve? BY CARBO Here are some instructions from a professional bronze ball valve supplier. First, it is necessary to find out that the upstream and downstream pipelines of the ball valve have indeed relieved the pressure before the disassembly and decomposition operations can be carried out. When disassembling and reassembling, you must be careful to prevent damage to the sealing surface of the ball valve copper parts, especially non-metal parts. Special tools should be used when removing the O-ring. The bolts on the flange must be tightened symmetrically, gradually and evenly during assembly. The cleaning agent should be compatible with the rubber parts, plastic parts, metal parts and working medium (such as gas) in the ball valve, etc are compatible. When the working medium is gas, gasoline (GB484-89) can be used to clean metal parts. Clean non-metal parts with pure water or alcohol. The disassembled individual parts can be cleaned by dipping. Metal parts with undecomposed non-metal parts can be scrubbed with a clean, fine silk cloth impregnated with cleaning agent (to prevent fibers from falling off and adhering to the parts). When cleaning, all grease, dirt, glue, dust, etc. adhering to the wall must be removed. Non-metal parts should be taken out of the cleaning agent immediately after cleaning, and should not be soaked for a long time. After cleaning, it needs to be assembled after the cleaning agent of the washed wall surface is volatilized (can be wiped with a silk cloth not soaked in the cleaning agent), but it must not be left for a long time, otherwise it will rust and be contaminated by dust. New parts of the flanged bronze ball valve also need to be cleaned before assembly. Use grease for lubrication. Grease should be compatible with ball valve metal materials, rubber parts, plastic parts and working medium. When the working medium is gas, special 221 grease can be used. Apply a thin layer of grease on the surface of the seal installation groove, apply a thin layer of grease on the rubber seal, and apply a thin layer of grease on the sealing surface and friction surface of the valve stem. When assembling, it should not be allowed to pollute, adhere to or stay on the surface of the parts or enter the cavity with metal chips, fibers, grease (except those specified for use), dust, other impurities, and foreign objects. What Does A Bronze Ball Valve Do? First, the fluid resistance of the valve is small, and the full-bore ball valve basically has no flow resistance.  Second, this small brass valve has simple structure and light weight. As a professional brass valve factory, we provide brass water heater drain ball valve, backwater valve, 15mm copper valve, half inch pex ball valve, etc. Want to know or more, contact us.

Audfly bluetooth directional speaker is small and beautiful, easy to carry, and supports a wireless Bluetooth connection. It can direct the sound to the area you specify, you can use it while watching videos, following the news, listening to music disturbing other people less in the room. Which Bluetooth Directional Speaker is Right for You? Audfly Mini Portable Directional Speaker With Bluetooth The Audfly model Mini is a special speaker to transmit a very focused sound beam to listeners. It allows you to direct the beam very accurately. Audfly Ultrasonic Transducer Speaker with Bluetooth Audfly model Mini can create directional sound at medium distances as if you have a headset, which is not audible to people next to you. General Features of Audfly Bluetooth Directional Speaker Audfly has launched a compact super directional speaker that supports a wide range of positions. It can use Bluetooth connection, which is very convenient for users. You can play directional audio by connecting wirelessly with your mobile phone or other devices. Besides the bluetooth directional speaker can be installed in narrow places and small terminals and ensure its sound effect, which was difficult in the past.

Audfly model B is one of the world's most popular ultrasound directional speakers. It provides a fully directional sound solution, enabling you to add sound wherever you want and keep it where you need it. Audfly ultrasonic sound speaker is most commonly used in indoor scenes, including museums, digital signs, retail stores, trade exhibitions, and galleries. Model B can be used in all installation solutions, including wall- mounted, ceiling-mounted, or integrated into monitors. Audfly provides all hardware required for installation in the packing list, including adjustable brackets. Audfly B2 Directional Speaker & Directional Sound Amplifier Specification Model FSC1-B2-S/G Maximum Sound Pressure Level (Volume) 88±3dB@1m/2KHz Directivity Angle <15°(-20dB) Frequency Range 500Hz-13kHz Rated Power 21W Input Sensitivity 1 Vrms Max Input 2.8Vpp Input Interface 3.5mm AUX Power Requirements 24V DC/3A Dimension 294*169*29mm Weight 900g Installed Accessories 75*75mm Universal Bracket Surface Treatment/Color Gray/Silver Mesh Cover Matching Power Amplifier Size 153*111*46mm Power Adapter (Input) 110-220Vac 50/60Hz    (Output) 24V DC/3A Audio Line 3.5mm Dual-Channel Audio Cable Functions of Audfly B2 Directional Speaker Flexible Install Type: Wall mounted or ceiling mounted based on clients' demand. Applicable to Multiple Scenarios: almost all the scenarios you need for audio directive transmission usage. Super Directional Transmission- make the target sound area where you want it, and leaving surrounded environment quiet. We provide directional audio speaker, Long range directional speaker, ultrasonic speaker array, parametric speaker for sale, etc. For more information, please feel free to contact us!

This is another product of Audfly directional parametric speaker B type, it also has excellent directional sound effects and is often used in tradeshows, airports, museums, offices, etc. Multiple mounting options: available for all solutions, including ceiling mount, and wall mount. Audfly B1 Directional Ultrasonic Parametric Speaker Model FSC1-B1-S/G Maximum Sound Pressure Level (Volume) 80±3dB@1m/2KHz Directivity Angle <15°(-20dB) Frequency Range 500Hz-13kHz Rated Power 19W Input Sensitivity 1 Vrms Max Input 2.8Vpp Input Interface 3.5mm AUX Power Requirements 24V DC/3A Dimension 294*169*29mm Weight 850g Installed Accessories 75*75mm Universal Bracket Surface Treatment/Color Gray/Silver Mesh Cover Matching Power Amplifier Size 153*111*46mm Power Adapter (Input) 110-220Vac 50/60Hz   (Output) 24V DC/3A Audio Line 3.5mm Dual-Channel Audio Cable Functions of Audfly B1 Directional Ultrasonic Parametric Speaker Flexible Install Type: Wall mounted or ceiling mounted based on clients' demand. Applicable to Multiple Scenarios: Almost all the scenarios you need for audio directive transmission usage, such as Tradeshow, museum or bank, etc. Super Directional Transmission: Create focused audio zones in certain area without disturbing anyone around you. We provide parametric loudspeaker, Long range directional speaker, parametric speaker for sale, etc. For more information, please feel free to contact us!

Backflow preventer for sale is a hydraulic control combination device that strictly limits the water flow in the pipeline to only one-way flow according to the situation that the backflow pollution of the tap water supply equipment, especially the drinking water pipeline is serious, and there is no effective device to prevent the backflow pollution. As a popular kind of China bronze ball valve, the backflow preventer function is to prevent the medium in the pipeline from flowing back under any working conditions to achieve the purpose of avoiding backflow pollution. At present, different types of backflow preventers are mainly low-resistance backflow preventers and pressure-reducing backflow preventers. According to national standards, the head loss of low- resistance backflow preventer device is less than 3 meters, and the head loss of pressure-reducing backflow preventers is less than 7 meters. Bronze Backflow Preventer Details: Use the principle of decompression to achieve low resistance. Compact structure and shorter size. Prevent sewage backflow. Can be tested online and overhauled online. Carbo's Bronze Backflow Preventer Advantages Bronze Backflow Preventer for Sale As one of the most biggest backflow preventer suppliers in China, Carbo provides different types of backflow preventers with high quality. The product has the characteristics of double non-return and air partition, which can completely prevent backflow pollution under any working conditions.  In addition, the backflow preventer device is designed according to the CJ/T160-2002 standard, with accurate calculations, excellent processing, reliable performance and sensitive actions. Both the inner and outer surfaces of backflow regulator valve are sprayed with environmentally friendly coatings to ensure the anti-corrosion and safety of the bronze backflow preventer. Bronze Backflow Preventer Device The two-stage independent check valve has small flow resistance and rapid opening and closing, which can effectively prevent the sudden increase of back pressure from damaging the valve and pipeline. It has a silent function. The discharge pressure of the discharge valve is adjustable, which is less disturbed by pipeline fluctuations, and the opening and closing is safe and reliable. Bronze Backflow Preventer FAQs What are the different types of backflow preventers? According to the connection methods, the backflow prevention device types can be divided into flange connection and threaded connection. The flange connection has a pressure reducing backflow preventer and a low resistance backflow preventer. A threaded connection has a threaded low resistance backflow preventer, a miniature backflow preventer, and a water heater backflow preventer. What kind of backflow preventer do I need? A water heater backflow preventer that strictly limits the water in the pipeline to only one-way flow. Its function is to prevent the medium in the pipeline from flowing back under any working conditions to achieve the purpose of avoiding backflow pollution. Customers can choose different types of backflow preventers according to their needs. As a big bronze valve factory, we also provide other kinds of valves such as bronze globe valve, bronze gate valve and so on. How high does a backflow preventer need to be? The backflow preventer should be installed horizontally, and should be installed in the direction of the arrow during installation. The height of the outlet of the safety drain valve should be greater than 400mm from the ground, and it should not be submerged by water or debris. According to the national standard, the head loss of the low-resistance backflow preventer is less than 3 meters, and the head loss of the pressure-reducing backflow preventer is less than 7 meters. As a professional bronze valve supplier, we provide brass water heater drain ball valve, backwater valve, backflow preventer for sale, half inch pex ball valve, etc. Want to know backflow preventer cost or more, contact us.

Audfly super directional speaker has broken through the traditional "divergent" transmission mode of sound and created a new situation of focused sound transmission and accurate broadcasting. Without using a large speaker array, the sound can also be highly directional and projected to a specific area, creating an accurate, quiet, independent audio space that does not interfere with the surrounding environment. Types of Directional Loudspeakers for Sale Audfly highly directional speaker series includes wall-mounted directional speaker, ceiling-mounted mono directional speaker, portable Bluetooth directional speaker, super directional soundbar, customized directional speaker, etc. Our directional speaker series can be customized in many different colors, shapes, and sizes. If the directional speaker you need is not in our current speaker series, our team can customize the solution to meet your color, installation, or technical requirement. Directional Wall Mounted Speaker Audfly directive speakers are specially designed for applications such as museums, galleries, etc. with wall-mounted installation methods. It doesn't take up extra space and is convenient for people to best experience directional sound. Audfly B2 Directional Speaker & Directional Sound Amplifier Audfly B1 Directional Ultrasonic Parametric Speaker Ceiling Mounted Directional Speaker Many applications such as museums. supermarkets. luxury stores. etc. pursue a high-quality consumer experience. Audfly Long range directional speaker provide directional sound without occupying the space of the application scene. Bringing customers an immersive listening experience. Audfly R2 Ceiling Speakers Round For Museum Audfly R1 Ceiling Mounted Directional Speakers Bluetooth Directional Speaker Audfly's R & D Dept and Production Dept pursue to move with the times. combining ultrasonic cutting-edge technology with Bluetooth technology to design and produce world-class super mini directional speakers. Audfly Mini Portable Directional Speaker With Bluetooth Audfly Ultrasonic Transducer Speaker with Bluetooth Super Directional Soundbar Audfly not only has mini directional speakers but also has a very large-sized long ultrasound directional soundbar, which is suitable for many scenarios that require better quality and higher volume. Audfly L1 Acoustic Directional Soundbar Audfly Audio Spotlight Directional Speaker Customized Directional Speaker Audfly has a complete system including design, software & hardware. production, packaging, logistics, and after-sales service. Therefore, Audfly has the ability to provide customers with various customized services, ODM and OEM are both ok. Advantages of Audfly Super Directional Speaker - 01 - The unique directional audio technology of super directional speaker can make the sound directional transmission, clear and direct. Advantages of Audfly Super Directional Speaker - 02 - Compact and light, various installation forms, suitable for various commercial applications. Advantages of Audfly Super Directional Speaker - 03 - Target the audio transmission just like the light beam. Leaving the surrounding sound environment not disturbed. How Directional Speakers Work Compared with conventional loudspeakers, the main difference between Audfly directional audio speaker and conventional loudspeakers is that Audfly directional audio speakers apply many ultrasonic array transducers as sound generating units, combined with a series of algorithms Audfly developed, through the medium's nonlinear interaction, the directional propagation of sound at a specific angle is finally realized. The advantages of ultrasonic speaker array is its higher-frequency waves with a relatively shorter wave length and spread out less as they travel. Meanwhile, having an array of many, small transducers makes sound disperse less than it would do from a single, large transducer, ensures balanced sound quality of directional speakers audio transmission. That is what we called Audfly Directional Sound Technology. How Directional Speakers Work FAQs about Audfly Directional Sound Speaker Q How many parts does a directional sound system consist of? What are they?  A Generally speaking, a whole directional sound system consists of 5 parts, including a speaker panel(emitters), amplifiers, power adapter, audio cable, brackets, etc. Some of our directive speakers are with built-in amplifiers to panel. Q Where can Audfly directional audio speakers be used?  Q Is your directional loudspeaker easy to install?  Q What are the main functions of your directional sound speakers?