... Working power: Power supply voltage: 9V ± 10% 1A (input AC 110-220V 50Hz). Complete machine power consumption: <3W Battery ... local, but also can talk with the people. 2. system configuration (1) technical parameters Defence zone : wireless standard equipment ... are Home PSTN/GSM Security Alarm System, 3G Alarm System, GSM Power Alarm, Video Monitoring system, Wireless Remote controller, RF Transmitter ...