Supply current:130mA. RF input:50ohm SMA. Video output voltage:1.0Vp_p75ohm. Audio output voltage:1.0Vp_p10Kohm 56 channels, 7 frequency band wireless receiving. Two buttons for channel and band exchange individually Twonumber display, timely locate the current receiving frequency and band. When power on, storage memory shows channel and frequency of the last time Two-way video and audio signal output (video:PAL,NTSC,CECAM; Audio:6.5MHz) 5dB sensitivity gain more than normal receivers. Wide supply 12V Is Electric:No battery Wheelbase:Bottom Plate Size:56CH Model Number:RC832 mini RX For Vehicle Type:Airplanes Four-wheel Drive :Assemblage Remote Control Peripherals/Devices:Remote Controller Upgrade Parts/Accessories:Adapter RC Parts and Accs: Colour:Gray Material:Metal Package Contents: 1 x Receiver 1 x Antenna 2 x Cables 1 x English instruction manual 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.