The Essential Digital Video Baby Monitor offers the essential features to keep an eye on your baby at all times, keeping you in touch with your baby indoors and outdoors. Large 2.4 inch screen and adjustable infrared camera (works even in the dark). Dual dark light function, with fixed or variable intensity, allows you to keep your baby company during bedtime or in the phase before bedtime. By setting voice activation, the parent unit will activate only in the presence of sounds detected by the baby unit. Both units (parent and child) can be powered by battery or mains adapter. Two mains adapters and a rechargeable lithium battery are included for the parent unit.