Backlit LCD display on parent unit Orange. The parent unit shows the temperature of the baby room. Display of operating aid icons (night light, room temperature ...). Talk to baby function. Parental sound level adjustable 5 levels + Off. Sound level indicator lights (2 colors depending on intensity) 5 LEDs. Silent mode (information by indicator lights). Silence indicator on. Vox function: voice activation to save energy and reduce waves. Lullaby on the baby unit (5 melodies). Tone alarm (beep) activated in silent mode. Temperature monitoring function. Sleep function on the baby unit. Link indicator between parent unit and baby unit. DECT technology (no interference). Secure private connections. Outdoor / Indoor Range (meters) 300/50. Low battery indicator. Unit indicator out of range. Wireless parent unit: Standard rechargeable batteries 2xAAA 400mAh NiMH (incl.). Parent battery life Up to 14 hours.