Network protocol: TCP, UDP, ARP, ICMP, IGMP

Network chip speed: 10/100Mbps

Audio sampling, bit rate:≥90dB, 20Hz-20KHz

Signal-to-noise ratio, frequency response:≥90dB, 20Hz-20KHz

Network voice delay: Broadcast delay≤100ms, intercom delay≤30ms

1. wall hanging design, 3 inch bright LCD display (128*64), multi function touch selection button. It has the functions of receiving broadcast and calling broadcasting.

2. audio uses hard decoding form, 16 bit audio, stereo CD quality, built-in hardware decoder chip, to achieve the local real-time signal acquisition function and audio decoding function, support USB playback.

3. built in 2*20W dual channel stereo power amplifier, can be directly connected to the speakers for playback

The 4. panel integrated 19 bit keys, VOD server in the audio file, fast forward, rewind, adjustable playback, pause playback settings. There are multiple play modes such as sequential cycle.

5.1 way local line input, 1 line output, 1 way local microphone input, 1 way USB input, can play U disk songs

6., standard 2 way 10/100M RJ45 network switch interface, support LAN wan.

7. (optional) can be equipped with TF card, backup bell task in the card, to achieve timing task when the network is broken

8. (optional) can be equipped with remote control. With 12 buttons for wireless remote control broadcast program, remote control distance of up to 1000 meters.

9. (optional) can be equipped with 24V strong cut power output, in the case of fire alarm, turn on the voice control switch.

10. (optional) can be equipped with monitor module to monitor the terminal site.