The Angelcare combines a quality sound monitor and a movement monitor in one single system. Whether your baby is awake or sound asleep, Angelcare's under the mattress sensor pad will detect all of your baby's movements even the slightest breathing movements! The Sensor alarm works in such a way that if movement is not detected after 20 seconds then an alarm will sound to alert you to the situation. The optional 'tic' sound feature reassures you that the Monitor is working even when your baby is sleeping silently. 2 Portable, Rechargeable Parent Units Put the two Parent Units in two different rooms or clip the small portable parent unit to your belt and monitor your baby on the go. Battery unit lasts for up to 8 hours, when fully charged. Crystal Clear Transmission Enjoy crystal clear sound transmission and security, with the unique combination of 8 channels and 2 frequencies. Temperature display and control Monitors and shows the temperature in the baby's room with the temperature indicator on the parent units. Alarm sounds if the temperature is too high or too low. Under the mattress Sensor Pad The Sensor Pad monitors all of your baby's movements, even the slightest breathing movements. An alarm will sound if no movement has been detected for 20 seconds. Features variable sensitivity settings. Out of range indicator With a 250m range, you can go further without losing touch. Alarm sounds if connectivity is broken. Features Crystal clear transmission Temperature display and control Under the mattress Sensor Pad Continuous or voice activated sound monitoring Batteries or mains operated Out of range indicator Full colour digital display Nightlight 2 Portable, Rechargeable Parent Units Volume control & vibration alert Audio 'tic' feature 250m Range