Set up multiple alarm phone groups: preset 6 alarm phone groups, the host automatically dials the phone voice alarm, preset 3 SMS phone groups, the host automatically sends SMS alarms Scheduled arming and disarming: 3 sets of scheduled arming and 3 sets of scheduled disarming 10-second manual recording message at the host installation address 45 wireless defense zones, each defense zone can be customized, support 8 wireless remote controllers Alarm location programming: custom name; system comes with: SOS, fire, gas, door lock, hall, window, balcony, perimeter alarm Programming function: instant, delay, 24 hours, door knock, elderly defense zone programming function Remote control in different places: host arming, disarming, monitoring, intercom and other functions Low battery reminder: built-in rechargeable lithium battery, no need to worry about the alarm being unable to be transmitted due to insufficient battery of accessories Guard your home 24 hours a day: normal operation when power is off and network is disconnected, power off alarm function Voice control: support Alexa, Google Assistant voice control Specification: Power input: DC 12V 1A Standby current: ≤45mA Alarm current: ≤300mA Battery capacity: built-in 3.7V BL-5B battery (rechargeable) Backup battery charging time: turn the battery switch to "ON", charge for 10 hours, and standby for 8 hours when fully charged Siren alarm sound: wired 120dB (factory default alarm sound 180 seconds) Host receiving frequency: 433MHz (±75KHz), PT2262/4.7MQEV1527/300K (315MHz needs to be customized) Host transmitting frequency: 315MHz (±75KHz), PT2262/4.7MQEV1527/300K (433MHz needs to be customized) Number of alarm phones supported: 6 groups of user alarm phones Number of wireless accessories supported: 8 wireless remote controls, 45 wireless detectors Distance between the host and accessories: Remote controller ≤40 meters (no obstacles), detector ≤80 meters (no obstacles), please test after installation, different obstacles will have different distances Original password: 123456 Usage temperature: -10℃~+50℃