The wireless doorbell is very easy to install as it does not require any wiring, as the regular doorbells which require proper wiring and installation. Their easy installation makes them a popular choice among the people, especially those who need to switch the houses often. The receiver of a wireless doorbell is portable and can be easily switched to another location.
The wireless doorbell works with radio frequency (433 MHz). It contains 16 different tunes. Maximum range is 30 meters. The doorbell has two pieces: sound receiver and push button. Both are battery-operated devices.
16 different tunes.
Easy to install (pegs and screws not included - push button with an adhesive back).
Sound receiver (approx. dimensions: 9. 5 x 14. 5 x 3. 5 cm).
Push button (approx. dimensions: 4. 5 x 8 x 1 cm).
Sound receiver: 3 x AA, not included.
Push button: 1 x 23A, included.