* 868 MHz for higher reliability and interoperability
* 10-second recordable alarm message
* Entry & exit delay
* Remote control by smartphone app (iOS and Android)
* Support 50 sensors and 10 remote controls
* Remote GPRS firmware upgrade through GSM command
* Tamper alert when moved
* Store up to 5 phone numbers
* 3.7V 1200 mAh 18650 lithium back battery
* Internal Siren Volume: 105 dB
