This digital audio monitor delivers clear interference-free two-way transmission so you can talk to your baby & offer reassurance should they wake. The baby unit houses the microphone & incorporates a comforting nightlight. The parent unit has a recharging/docking station & will operate up to 300 metres from the nursery. Its LED display indicates sound levels volume & microphone sensitivity settings. With 120 channels available for interference-free monitoring lines of communication should u