> Supports 150 wireless peripherals (6 sirens, 64 wireless keyfobs).> Peripherals status display (signal strength, battery level, temperature,program version).> Wired, Wi-Fi or GPRS network connection.> Dual SIM and Single Standby.> Automatic network replenishment (ANR).> Video linkage on App.> Frequency hopping function and two-way communication technology ensure communication stability> Cloud update and automatic recovery from update failure.