1) 2.4G wireless connection 2) Image sensor: VC1/3 Color CCD 3) TV System: NTSC 4) Transmission frequency: 2414MHz 5) Signal transmission distance: 100 meters 6) Car Rearview System can view 170 degrees angle level and 90 degrees vertical level 7) Car Rearview System Low illumination, 2.0Lux 8) Car Rearview System is Viewable as long as 3 meters at night 9) Car Rearview System Waterproof level: IP66 10) Car Rearview System is Easy installation for car and bus 11) Power: DC 12V±6V/ 200mA 12) Work temperature: -20℃~60℃