※ balanced first-class indoor wall speaker, ABS plastic shell (black and white optional), iron red network; ※ equipment using embedded computer technology and DSP audio processing technology design; ※ high-speed industrial chip, start time is less than 1s; ※ Built-in 1 network hardware audio decoding module, support TCP / IP, UDP, IGMP (multicast) protocol; ※ realize network transmission 16-bit stereo CD sound quality audio signal. ※ built-in Class D 2 × 20W power amplifier circuit, sound quality, power strong; ※ with a broken network, off the server's active takeover task function, can achieve the terminal disconnection automatically play; ※ comes with 4G large capacity memory, the program through the network to the SD card storage; ※ built-in high-precision timing digital clock chip, power failure time is not less than 3 years, with the network when the function;※ 高強度云母碳化聚丙烯振膜，提供清晰的語言表現(xiàn)；
※ 1 way line and 1 microphone input interface, with independent volume adjustment; ※ network audio signal can be local adjustment function; ※ The IP address of the device has a reset button. When the IP address is lost, the initial setting can be restored. ※ built-in audio processing circuit to support multi-channel signal amplification, mixing, support 3 audio signal priority management; ※ support 1000 levels of custom audio priority silent control; ※ support PSTN telephone broadcast, support SMS voice broadcast; ※ support mobile phone WIFI on demand, support wireless remote control on demand; ※ support server unified authorization operation management function, unified configuration management user and password; ※ support DHCP, compatible routers, switches, bridge gateway, Modem, Internet, 2G, 3G, 4G, multicast, unicast and any other network structure; ※ support the terminal configuration of the new intelligent voice prompts when the registration (such as the device is connected); ※ support 15KVESD protection, built-in network isolation lightning protection circuit; ※ 1 PC download IP address serial port, used to modify the network decoding module IP address; ※ digital network products, easy expansion, from geographical restrictions, without the need to increase the room management equipment; ※ the use of common network construction of the design concept, easy to install; ※ Equipment power supply using switching power supply design, AC100 ~ 240V voltage can work properly;
