Crystal clear - enhanced transmission and reception. 8 digital channels can be manually selected to eliminate any interference. Soft comforting halon night light. Easy to see and read colour LCD Digital display on parents unit. Baby's room temperature displayed on the parent unit. Potable and rechargeable parent unit with handy integrated belt clip. Automatically reverts to to batteries incase of power failure - includes ow battery indicator. Voice activated or continuous sound transmission - user selectable. 2 x AC adaptors included. Up to 250 m range and includes out of range indicator. Back up battery with low battery alarm. 5 sound volume levels.