Digital sound quality with high definition sound (Hi-ds™) lets you hear your baby breathe, gurgle, snuffle or cry with complete clarity. Wireless range of up to 300m outdoors and up to 50m indoors (in ideal conditions, where there is a clear line of sight between the units) giving you the freedom to move around with clear reception and no interference from other baby monitors.Out of range and battery low warnings. Link light provides continuous confidence that the Parent unit is receiving a signal from the Baby unit and will alert you if the link is lost. Talk Back feature lets you instantly reassure and calm your baby. Nightlight on Baby unit. Crying alert on Parent unit.Mute All and Mute Low options on Parent unit. Compact travel bag to fit all components.