Door Alarm - Burglar Protection - 5 Different Modes - 130 dB Batteries Included - for Home Security - Burglar Protection - Door Alarm Sensor

One-button operation: This alarm doorbell does not require an additional remote control. It features a built-in on/off button and a setup button to adjust the volume and mode.

Five modes: Press the setup button once to activate alarm mode; press the setup button twice to activate doorbell mode; press the setup button three times to activate the 30-second alarm; press the setup button four times to activate the audible alarm; press the setup button five times to activate the 15-second alarm.

Specifications: 3 built-in LR44 batteries, dimensions: 65 x 34 x 16.5 mm.