... Digital signal processing & microcomputer control technology2. Arm ,disarm ,panic alarm , select protective zones independently3. Audio and mute alarming status ... . Remote controlled by mobilephone to arm, disarm, panic alarm, listen to the record and monitor the alarming scene. ... Power supply : AC: 185-245V, DC:12-20V, 500mA2. Alarm current: ≤300mA3. Frequency: 315MHz /433MHz4. Standby current: 12V , ...