2.4GHz 4 Channels A/V Audio Video Sender Wireless Transmitter ReceiverFeatures:2.4GHz 4 channels wireless audio/video transmitter receiver.Adopted advanced microwave wireless transmission technology， it can transmit high quality video and audio signals.Good capacity of anti-interference to ensure clear reception quality of video and audio.FM modulation for superior performance.Can be connected to AV devices like CCTV camera， DVD player， Video camera， etc.Wireless transmission distance up to 100 meters without any obstacles and interfering signal( Actual transmission distance depends on specific environment).Easy to install and operate.Specifications:Color: BlackTransmission distance: Up to 100 meters(without any obstacles and interfering signal)Signals transmitted/Receiver: Video and audioA/V Frequency: 2.4GHzA/V Demod Method: FMOperating Temperature: -10℃~50℃(14F~122F)Transmitter:*Transmitting Frequency: 2.411GHz， 2.431GHz， 2.451GHz， 2.471GHz*Number Of Channels: 4*Input: VIDEO OUT+R/L AUDIO IN*Power: DC 9VReceiver:*Receiving Frequency: 2.411GHz， 2.431GHz， 2.451GHz， 2.471GHz*Number Of Channels: 4*Output: VIDEO OUT+R/L AUDIO IN*Power: DC 9V， 180mATransmitter size: 12 * 6 * 3.2cm / 4.7 * 2.4 * 1.3inReceiver size: 12 * 6 * 3.2cm / 4.7 * 2.4 * 1.3inTransmitter weight: 193g / 6.8ozReceiver weight: 193g / 6.8ozPackage size: 22.5 * 14.5 * 6.5cm / 8.9 * 5.7 * 2.6inPackage weight: 634g / 22.4ozPackage included:1 * Transmitter1 * Receiver2 * Power adapter (US Plug)1 * User's manual