1) You can use the U disk to modify the configuration information such as the terminal's IP address;

2) 1 LAN network interface, 1 external AUX input, 1 AUX local output, 1 MIC local input; 3) USB interface, you can plug in U disk to play to the network; 4) Network audio, AUX, and microphone independent volume adjustment; 5) The MIC microphone has the function of automatically turning on and automatically turning off the network broadcasting. As long as the inserted microphone is turned on, it can broadcast speech without any operation; 6) The external audio input signal can be collected and broadcast, and it can also be broadcast and broadcast to other terminals regularly; 7) Two-way intercom (without screen, can not initiate intercom, the other party initiates intercom); 8) Built-in 5-band equalizer adjustment; 9) With 3-level priority function, the network audio has the highest priority, followed by the local microphone, and again for the local AUX input, which is convenient and quick for audio switching; 10) With constant voltage backup function, analog signals can be used to ensure normal playback when the network is unavailable; (this function is an additional function, and the above quotation does not have this function) 11) The server timing task can be downloaded to the local terminal, and the bell can be played when the server is closed; (this function is an additional function, and the above quotation does not have this function) 12) Built-in 2*15W power amplifier, can be connected to 2 8Ω 15W speakers; 13) With 1 short-circuit input, the short-circuit input can be configured to trigger other terminal alarms or play music; 14) With 1 short circuit output, it can trigger to turn on the power sequencer and other equipment; 15) It can be configured with shortcut keys for shortcut call and intercom for 2 common partitions; 16) Size: 220*150*50MM 17) DC12V/3A power adapter power supply; 18) Aluminum alloy panel and metal body