BC-5700D is Neonate’s most selling model to date. The small flexible units have long transmit range, low radiation, interference free transmission and high capacity rechargeable lithium batteries with up to 200 hours stand-by-time. Despite the small size units, BC-5700D have a LCD display with gives you an update of temperature, signal strength, and battery status in both units. Night light on baby unit and vibration function on parent unit are included. Special features insures the lowest radiation possible which also preserve battery lifetime for optimal battery stand-by-time.