1. 6mm aluminum panel for wall-mounted or wall-mounted installation, weatherproof, durable and easy to identify

2. Support double-key call button, make one-click call and one-button alarm to the designated center or terminal

3. Built-in 3W speaker and intercom microphone for full-duplex intercom, hands-free calling and receiving broadcast

4. Support loop monitoring, configurable TF card to support local recording

5. Compatible with standard onvif protocol, SIP protocol, can be connected to VOIP phone system separately (compatible with mainstream IP-PBX)

6. Support 2 channels of passive audio output and 2 channels of 20W power amplifier output

7. Support 1 channel alarm output, 1 channel TTL can remotely control access control, lighting and other peripherals;

8. Support wired transmission to achieve cross-route and cross-network transmission