Wireless DoorBell ringbell Home Door Chime Intelligent smart Bell calling ringbell loud 1 2 3 Receiver
No wiring is needed, and you just stick the transmitter onto the wall; or you can also use screw to fix the transmitter to the wall
Strong penetrating performance Intensified signal+high frequency transmitting technique enable it to cover the whole building with multi layers
45 chimes and tones Default Tone Ding-dong Embedded high quality speaker Clear and loud sound