This product uses advanced high-frequency wireless transmission technology, with long transmission distance, strong anti-interference and unlimited movement. Audio and video signals such as digital TV set-top boxes, Blu-ray DVDs, satellite receivers, security DVR recorders, security surveillance cameras can be wirelessly transmitted to the receiving end for reception and displayed on the TV. At the same time, it supports infrared return function. If the set-top box is in the living room, the TV (or projector) is in the bedroom, the remote control of the set-top box can be used to operate the set-top box placed in the living room, and the remote wireless infrared return function can be easily realized. Features: 1. HDMI interface, the highest resolution supports 720@60Hz. 2. Equipped with digital display to show the channel switching and power on/off status. 3. Support 8 groups of channel selection, effectively avoid wireless signal interference such as wireless routing. 4. It can easily penetrate 1~3 walls and has an unobstructed transmission distance of 350 meters in open space. 5. New dual-antenna design eliminates the need to adjust the antenna angle, 360-degree omnidirectional reception. 6. When the transmitter is in the same channel as the receiver, it can be used simultaneously with 1 to 1 or one transmitter and multiple receivers. 7. Support 433MHz superheterodyne infrared remote control signal wireless backhaul, compatible with 38KHz infrared carrier remote control signal. 8. The transmitter has built-in infrared signal transmission or uses infrared signal extension cable for remote remote control Blu-ray DVD, digital set-top box and other equipment. 9. Full hardware design, no software installation required, no setup required, plug and play. Specification: Plug type: US, EU, UK (Optional) Material: ABS Colour: Black Voltage: 110-240V Transmission frequency: 5.8GHz Channel switching: 8 groups Transmission distance: 350M Input and output port: HDMI Transmitter TX Input Resolution: maximum support 1080P@60Hz Receiver RX Output Resolution: up to 720P@60Hz Pow er input: 5V/2A Size: approx. 128 * 93 * 26mm / 5.0 * 3.7 * 1.0in Weight: approx. 630g Package List: 1 * Transmitter 1 * Receiver 2 * Power Plug 1 * Connecting Cable .