—SIP protocol and network compatibility
—Multicast partition management and broadcast control​
—20 W high-power audio output and expansion capability
—​​POE power supply and wide voltage adaptation​

- POE Powered, 20 Watt Speaker
- 10/100M Basic Adaptive Ethernet Interface
- Wall Mount Speaker

- White round paging speaker
-Standard SIP protocol, TCP playback
-POE Module Power Supply, 20 W Speaker
-10/100M basic adaptive Ethernet interface

- Supports standard SIP protocol
- TCP playback
- Built-in 30W speaker
- POE power supply

- Based on SIP2701 version, add transparent transmission serial port transparent transmission I/O function.
- Support for customisation
- 2 inputs and 2 outputs General Purpose I/Os
- 2 TTL level status outputs