High quality Easy installation Takes one minute to make your camera a wireless camera Wireless 2.4GHz transmitter/receiver set (12-24V for vehicle installation) Work Range: Up to about 200m (open area) Connects to rear-view camera and front video screen Fits all 4Pin composite video connections Power: DC 12V-24V Transmitter/Receiver Cable Length: 1.5m This device is for car rear view monitor, commonly used for trucks; it is a wireless connector and waterproof; can be installed easily 2.4G 200mW Wireless Video Transmitter & Receiver Power Supply: DC 9V-24V Consumption Current: 150mA T/R Frequency: 2.2G~2.3G~2.4G Output Power: 200mW Unobstructed Effective Range: 150 ~ 200m Operating Temperature: -10C ~ +50C Transmitter Dimension: L8cm x W4cm x H2cm Receiver Dimension: L8cm x W4cm x H2cm Material: ABS Color: White Package Contents: 2 x Wireless Transmitter & Receiver (Aviation head) Only the above package content, other products are not included Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. Measurement allowed error is +/- 1-3cm