General description This Door Alarm offers robust burglar protection with five different modes to suit your security needs. It features a built-in on/off button and a setup button for easy volume and mode adjustments, eliminating the need for an additional remote control. Technical specifications Built-in batteries: 3 LR44 Dimensions: 65 x 34 x 16.5 mm Alarm volume: 130 dB Usage Press the setting button once to activate the alarm mode Press the setting button twice to activate the doorbell mode Press the setting button three times to activate the 30-second alarm Press the setting button four times to activate the buzzer alarm Press the setting button five times to activate the 15-second alarm