The VTech BM2800 video and audio baby monitor with 2.4GHz FHSS technology for a secure connection and clear sound without interference. The Baby Unit features manual tilt, auto night vision and digital zoom. It operates on mains power. Comes with 2 lullabies and 2 natural sounds with 5 level volume setting. It also has a temperature sensor, speaker/microphone for 2 way communication with the parent unit and it is wall mountable. The Parent Unit has a 2.4-inch colour display with LCD for room temperature monitoring and speaker/microphone for 2-way communication with the baby unit. It has sound activation mode, low battery audible alert and out of range audible alert.