Analogue. 4 channels. Range up to 150m. Volume control. 5.6 inch colour display. Can be set-up and working in under 5 minutes. Has special encoding of visual transmission to stop unauthorised viewing of babies and/or children. Designed to grow and expand with the family with the addition of up to 3 other cameras for protecting family members, children and/or babies in other locations. Timed scan of all other camera locations. All images captured by the monitor can be saved onto camcorder, video or DVD recorder. Audio/Video lead supplied with 5.6 inch monitor. Camera has night vision capability to produce black and white images on the colour monitor. Camera has low energy usage system to prolong life of batteries. Camera will activate colour monitor alarm on sound and transmit voice and video to the monitor. Baby unit requires 4 x AA batteries for portable use (not included). Mains adaptors are provided for both baby and parent unit.