Astak CM-840J 2.4GHz Wireless Camera with Night Vision Night vision wireless color camera Built-in 11 Infra-red LEDs to aid nighttime vision. Built-in rechargeable battery for ultimate mobility, camera works 5 hours after each charge. 4 channel switchable to avoid interference. 4 channel switchable to avoid interference. Professional quality and durable design Easy setup, just connect to your TV or VCR. No wiring needed, easy installation. Built-in sensitive microphone. High quality color images: 380 TV lines. Video output: RCA jack. Electronic shutter: 1/50  1/10,000 second. Transmission distance: 150-300 feet (line of sight, reduced through obstacles such as walls).