Smart wireless doorbell chime, remote controlled doorbell, for houses, public buildings, apartments

Features: 1. Wireless transmission and reception, easy to install, does not disrupt the aesthetic appeal of the room's decor. 2. The remote control distance of 20 to 30 meters (open space) (approximately 15 meters indoors due to signal interference) meets the needs of various residential and high-rise buildings. 3. The transmitter can be attached to the door with double-sided tape to prevent rain dripping. 4. No power consumption when stationary; the battery can be used for one year. 5. The receiver is powered by 2 AA batteries and is easy to replace. Specifications: Features: Wireless transmission and reception, easy to install, does not disrupt the aesthetic appeal of the room's decor. The remote control range of 20 to 30 meters (open space) (approximately 15 meters for home use due to signal interference) meets the needs of various residential and high-rise buildings. The transmitter can be attached to the door with double-sided tape to prevent rain from dripping onto it. There is no power consumption when stationary; the battery can be used for one year. The receiver is powered by 2 AA batteries and is easy to replace. Specifications: Condition: Brand New Color: As shown in the picture Material: ABS Receiver Power Supply: 2 AA batteries (not included) Transmitter Voltage: 1 x 23A battery (included) Package List: 1 x Receiver 1 x Transmitter 1 x Battery