Powered by 1 x CR2450 button battery.
6 month battery life (based on 20 activations per day).
Up to 100 meter range.
Supplied with bracket and screws.
The doorbell is supplied with a bleeper pager that will flash, vibrate and beep for 90 seconds when the doorbell is activated.
Supplied with belt clip and lanyard.
Simple to operate with just one button to cancel the alert.
Powered by 1 x AAA battery (battery life about 2 months)