KP-500TX4W is a -new wireless video transmission device, which adopts FM modulation mode and -new frequency, avoiding the 1.2Ghz/1.5Ghz/2.4Ghz wireless transmission that has been used more in the same range, avoiding the same frequency interference, and is more suitable for use in complex environments. The receiver sensitivity is -85dBm, and the transmitted image is clear and stable. With a ground high-gain antenna, it can transmit 2-3km in the open area of the city, and about 40km in the air-to-ground LOS (the transmission distance is different in different environments, and the specific transmission distance depends on the actual working environment). The transmitter is exquisitely crafted, made of special metal, and also has a high-speed fan, which is more conducive to heat dissipation and more suitable for long-term work. The signal input adopts a universal AV interface, which can be easily compatible with all conventional AV interfaces such as cameras, , , etc. KP-500TX4W is not only a professional wireless CCTV transmitter and receiver for CCTV security projects, but also can be used for video transmission of FPV systems, drones, model aircraft/helicopters, unmanned equipment vehicles, etc. 500Mhz 4W VTX Specification: Model number:KP-500TX4W Voltage:DC 12V Current:700mA Modulation:FM Frequency:500Mhz Channels:8 channels Transmit Power:4watt Video Output:1 -p(FM) Temperature:-10~+50 Antenna port:SMA Transmitter Weight:60g Dimensions:60x42x19mm VRX Specification: Model number:KP-RX500 Voltage:DC 12V Receiving sensitivity:-85dB Modulation:FM Frequency:500Mhz Channels:8 channels Video Output:1 -p(FM) Audio Output:1 -p(FM) Audio Carrier Ware:5.5M 6.0M Temperature:-10~+50 Antenna port:SMA Transmitter Weight:19g Dimensions (LxWxH):75x45x20mm Due to different product batches, the appearance of some parts may be different, which will not affect the use. Type:VTX+VRX Colour:As Shown Material:Aluminum Alloy Package Contents: 1 * Receiver Kit 1 * Transmitter Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.