1 Self Powered Doorbell: When the finger presses the doorbell, the kinetic energy is converted into electrical energy, 2pcs doorbell used for rear and front doors. 2 150m Range: The doorbell adopts 433MHz wireless signal, which has super penetrating power, and the receiving distance in open areas can reach 150m. 3 38 Melodies 3 Volumes: 38 melodies can be switched freely, the ringtones are pleasant to the ear, 3 volume adjustable, and mute can also be set. 4 Waterproof: The waterproof level of the transmitter reaches IP44, it can be installed outdoors and indoors, and is safe to use in rainy and foggy weather. 5 Nursing Pager: Not only a doorbell, but also a caregiver pager, suitable for the elderly, patients, pregnant women, guarding your family members. 6 Installation Method: Including strong double sided tape, no need for wiring and no damage to the wall, you can also use screws to install the doorbell.

What's in the box
1 x Self Generating Wireless Doorbell