Power supply: 9-15V DCPower consumption: 4WFM transmitter range: 8mBuilt-in 3.5-inch TFT monitor Rearview with camera, auto start working while car backwardBuilt-in dual stereo louder speakerBuilt-in FM frequency transmitter connect to your car stereo, total 7 points availableUniversal audio input for audio devices, such as iPods, MP3/MP4 player to enjoy wireless stereo listeningParking sensor system (RD078) is available Video in connector for any video sourceEasy installation, the mirror simply clips over the top of your existing mirror