1.With channel button to change channels easily 2.Channel memory function for power-off 3.Very light and ultra mini size 5.8G 400mW AV wireless receiver and transmitter kit    Feature of 5.8G 400mW AV wireless receiver and transmitter :5.8G 8ch transmitterWith channel button to change channels easilyChannel memory function for power-offVery light and ultra mini sizeThe mini but powerful 5.8G 400mw transmitter would make your fly to 4-5 km away with only the stock antenna, advanced build-in regulator offers this transmitter very wide power input range.5.8G NEW 400mw transmitter is just light, compact and powerful, a very good choice for 5.8G middle range FPV.This transmitter is compatible with all our 5.8G VRX like RC305, RC805 , AIO goggles and 5.8G DVR DV01.Specificaiton of 5.8G 400mW AV wireless receiver and transmitter :Transmitter frequency:5645-5945MHz;8CHTransmitting Power:400mW/26dBmTransmitting distance:>4000m(open area)Frequency control:built-in frequency and phase lock loop  AV input:analog AV signal input ANT connector:SMA(inside the needle)power supply:6.5-15 voltsCurrent supply:300mASize:55*26*17mm Remark:The transmitter's power input is ranging from 7-12V,however the voltage outptu from the TX for the camera us 0.5V,lower than the input power.It's suggested to use 3S lipo 11.1V battery.Note:antennas must be attched before powering on.Receiver:Receiving frequency:5665-5945MHz;8CHReceiving sensitivity:-90dBm Frequency control:built-in frequency and phase lock loopDouble lines AV output:analog AV signal outputAntenna connector:SMA(Inside the needle) Power supply voltage: 8-12VSupply current: 100mA   Dimension: 61*52*13mm(aluminium alloy extrusion profiles)Remark:The receiver's power input is ranging from 8-12V,dual AV output is supportedNote:the av cable uses 3.5mm plug on the receiver RC805Frequency of each channel:CH1: 5705 CH2:5685CH3:5665  CH4:5645CH5:5885  CH6:5905CH7:5925  CH8:5945