Wisecomm CW3501 2.4 Ghz Wireless Color Camera System Manual Pan/Tilt Weatherproof Camera Transmits Video & Audio Signals From 1 Av Device To Another Wirelessly Built-In Rechargeable Lithium Battery Works For At Least 5 Continuous Hours Avoid Interference With 4 Available Channels Built-In Microphone With Infrared Leds For Night Vision