★POE power supply, support IEEE802.3at standard;

High quality speakers with built-in decoding and amplification circuitry;

Superior CD quality output;

It is easy to operate, no need to set up manually, and automatically completes connection with the server after networking;

Access to the LAN through RJ45, bandwidth 100Mbps;

Support for obtaining scheduled programs from the server and from local memory;

Automatically complete the synchronization of the timing program with the server, the server program changes, and the network automatically synchronizes the task;

Both networked and offline modes of operation can still perform scheduled tasks in the event of a network failure;

Support remote receiving broadcast, remote sub-multicast tone and full-area broadcast;

Compatible with SIP-based mainstream IPPBX/softswitch/IMS platforms such as Asterisk, Broadsoft, 3CX, Elastix,

Avaya, Zycoo, etc.;

Support full-duplex real-time two-way conversation, support one-click help.

Programming timed tasks, support timing offline file playback, recording, music file playback, channel broadcast and other programming options, support programming multiple sets of timing schemes, support any optional execution terminal.

Support VOIP phone access. (provide a screenshot of the software interface, and stamp the official manufacturer of the equipment manufacturer)

Support Bluetooth function, can automatically connect four designated Bluetooth headsets, including PLUFY, Xiaomi headphones, Xiaomi headphones youth

Edition, Jabra, to meet the needs of teaching amplification;

Support IP voice calls to page the terminal;

Output power 10W;

Support cross-VLAN or Layer 3 routing;

Support for receiving emergency broadcasts and fire broadcasts;

★ With short circuit / 24V trigger to play a specific music function in the local memory TF card;

Support for all audio formats supported by WINDOWS;

Perfect users can be divided into management systems, safe and easy to use;

Standby power ≤ 0.3W;

Network delay is less than 50MS;

Short circuit, overheating, overload automatic detection and protection function;

Interface rate: 10M/100M/1000M adaptive;

Power failure restart recovery time: less than 1 second;

Main protocols: TCP/IP, UDP, DHCP;

File playback: the delay is less than 50ms;

Real-time speech: The delay is less than 150ms.