1.wireless camera+wireless screen +parking sensor(BY-01B604-1) 2.reversing sensor 3.parking sensor, 4.parking aid 5.CEROHS certificate Screen size:2.5 inches features: 1. Standard video signal output external display 2. Reversing switching display automatic 3. Figures show distance barrier 4 Simulation display around obstacles 5. In English and Chinese Voice / Buzzer Voice Alarm Optional installation specification: