1、Support 9 groups of user alarm calls, 9 groups of SMS phone numbers. 2、The phone (mobile phone) or SMS remotely sets the system to the host. 3、Can use the APP to set up and manage the host, support IOS / Android operating system. 4、2 channels of wired input alarm, 1 channel linkage wireless sound and light alarm. 5、The host uses a quad-band GSM/GPRS module. Features: Support 9 groups of user alarm calls, 9 groups of SMS phone numbers. Support 99-way wireless accessory detector. The phone (mobile phone) or SMS remotely sets the system to the host. Can use the APP to set up and manage the host, support IOS / Android operating system. 2 channels of wired input alarm, 1 channel linkage wireless sound and light alarm. A rechargeable lithium battery can be placed, and the power is automatically switched to standby. It has the function of saving when power is off. The host uses a quad-band GSM/GPRS module. Support outdoor sound and light siren pairing and control. Specification: Item Type: Burglar Alarm Material: ABS Power supply DC: 5V (mobile phone charger) Quiescent current: 50uA Alarm current: 100mA Transmission distance: 150m (open distance) Support receiving frequency: 433.92MHz Transmitting frequency: 433MHz Temperature range: -25℃-60℃ Support APP Download: Apple Market Search GSM Alarm, Android Market Supported languages: default Chinese, English, Weight: Approx. 319g Package list: 1 x Host 1 x Infrared detector 1 x Wireless door magnet 2 x Wireless remote control 1 x Instruction manual 1 x USB cable(without charging head) 1 x Bracket 4 x Screws