1. It’s easy to be connected into LAN or internet with its convenient HUB function.2. server LED and network LED indicating the communication state between other IP devices and server.3. 4 analog audio inputs, 4 IP network audio outputs.4. Diliver IP network audio directly to IP terminal to play without the support of server.5. High-quality sound output.6. It is programmable, Timing programs can be download into this device from server to ensure the programs will be executed on time in any unexpected condition such as the server fails or the networks have problem.