This baby monitor set consists of a transmitter unit, a receiver unit, and two power adapters. The microphone sensitivity can be adjusted, and the range control can be turned off. The baby monitor has a range of up to 250 meters in open fields. It features a sound-activated power-on function. The receiver unit with an LCD display includes a room temperature indicator, a noise level indicator, and a battery status indicator, as well as a belt clip. The transmitter unit is equipped with a night light. The baby monitor offers maximum reduction of electromagnetic smog and minimal radio frequency exposure. No internet is required for use. In the event of a power outage, the baby monitor automatically switches to battery operation (3 AAA batteries required and included). Tuner technology: VHF. Voltage: 1.5 V. Transmission frequency: 864 MHz. Dimensions: 21.6 x 17.2 x 8.1 cm. Item weight: 780 grams. Material: plastic.