TCP/IP, Wi-Fi, and GPRS network. New generation wireless protocol: Tri-X/Cam-X. Long RF transmission distance. Two-way communication with AES-128 encryption. Connects up to 64 wireless zones/outputs (including 48 PIRCAMs), 32 wireless keyfobs, 2 repeaters, 4 sounders, 8 tag readers & keypads. Supports up to 32 network users, including 1 installer, 1 administrator, and 30 normal users. Voice prompt. Configuration via Web client, mobile client, and Convergence Cloud. Hik-Connect and Hik-ProConnect configuration depends on the user access level. Pushes alarm notification via messages or phone calls. Views live videos from Hik-Connect. Alarm video clips via emails and APP. Supports LED indicator to indicates system status. 4520 mAh lithium backup battery. SIA-DC09 protocol, and supports both Contact ID and SIA data format.