BBillfet 2.4" Rechargeable Wireless 2.4 GHz Digital Video Baby Monitor with Night Vision, Talk to Baby Two-way Intercom, Zoom InOut, Auto Scan Working Cameras, 4 Channels ReviewbP PP Billfet 2.4" Rechargeable Wireless 2.4 GHz Digital Video Baby Monitor with Night Vision, Talk to Baby Two-way Intercom, Zoom InOut, Auto Scan Working Cameras, 4 Channels P4 Channels,support 4 cameras for one monitor. If one LCD (parent unit) with 2 or more cameras, the LCD can scan the working camera mannually or automaticallyP2.4" LCD Digital Baby monitor, Video to see your baby with 2.4" LCD color screen, can adjust the effect of image, can also see video on TV with TV out functionP2 way talk, can communicate with your baby. VOX function (Automatic voice activation power saving mode - monitor unit shuts down automatically if no noise is sensed). Transmission range: 100-150m (in open areas)PAdaptor operated for both units. Parent unit monitor can be rechargeable with rechargeable battery inserted. Baby unit camera can be battery operated, 3 x 3A normal battery (batteries not included)PAutomatic infrared night vision.