> Supports 150 wireless peripherals (6 sirens, 64 wireless keyfobs). > Peripherals status display (signal strength, battery level, temperature, program version). > Wired, Wi-Fi, 4G, 3G or GPRS network connection. > Dual SIM and Single Standby, auto switching. > Automatic network replenishment (ANR). > Video linkage on App. > SOS emergency alarm. > Frequency hopping function and two-way communication technology ensure communication stability. > Cloud update and automatic recovery from update failure.