Voltage:DC 12V Current:600mA Frequency band:460Mhz, 480Mhz, 500Mhz, 520Mhz, 540Mhz, 560Mhz, 580Mhz, 600Mhz Number of channels:8 channels Transmit Power:2 watt Video Output:1 -p(FM) Audio Output:1 -p(FM) Audio Carrier Ware:5.5M 6.0M Distance:20km from air to ground; 1km NLOS on ground Overall Configuration:Transmitter, receiver, video cable, antenna Temperature:-10℃-+50℃ Colour:As Shown Material:Aluminum alloy Package Contents: 1x Transmitter 1x Receiver 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.