※ Balance first-class indoor wall mounted speaker, ABS plastic shell (black and white optional), iron punch screen;
The device is designed using embedded computer technology and DSP audio processing technology;
Using high-speed industrial grade chips with a startup time of less than 1 second;
Built in 1 network hardware audio decoding module, supporting TCP/IP, UDP, IGMP (multicast) protocols;
Realize networked transmission of audio signals with 16 bit stereo CD sound quality;
※ Built in D-class 2 × 20W amplifier circuit, with delicate sound quality and strong power;
※ Built in Bluetooth wireless audio transmission and reception module, supporting Bluetooth microphone wireless mobile speech;
※ Set up an external microphone interface for use with lavalier and headset microphones;
The unique PPT page turning and one click black screen function, combined with projectors, computers, or classroom screens, make it more convenient for presentations and explanations;
※ Built in laser pen with laser electronic teaching whip function;
※ Built in language switching function, Chinese and English can be selected at any time;
※ Built in high-sensitivity dual pickup microphone, with manual or automatic switching, to collect sound sources in all frequency bands that can be perceived by the human ear, ensuring that no explanation content is missed;
The LCD display screen has a display function that can show volume, battery level, charging status, and channel information;
※ Custom key function, allowing users to customize functions according to their own needs;
USB interface, realizing charging and data content writing management operations;
※ Built in lithium battery power supply, USB charging, more convenient to use;
When there is no signal or weak signal, the transmitter automatically enters the mute function mode;
Ultra long talk time, uninterrupted use for more than 8 hours, meeting users' daily work needs;
High strength mica carbonized polypropylene diaphragm provides clear language expression;
※ One line and one microphone input interface, with independent volume adjustment;
The network audio signal can be locally adjusted;
The device IP address has a reset button, which can restore the initial settings when the IP address is lost;
Built in audio processing circuit, supports multi-channel signal amplification and mixing, supports 3-level audio signal priority management;
Support 1000 level custom audio priority mute control;
Supports PSTN telephone broadcasting and SMS voice broadcasting;
※ Supports mobile WIFI on-demand and wireless remote control on-demand;
※ Support server unified authorization operation management function, unified configuration management of users and passwords;
※ Supports DHCP and is compatible with routers, switches, bridges, and gateways Modem、Internet、2G、3G、4G、 Any network structure such as multicast, unicast, etc;
※ Support intelligent voice prompt function when registering new terminal configurations (if the device is already connected);
Supports 15KV ESD protection and has a built-in network isolation and lightning protection circuit;
Download IP address serial port on one PC to modify the IP address of the network decoding module;
Digital networked products, easy to expand, not limited by geographical location, and no need to add data center management equipment;
Adopting the design concept of shared network without line construction, the installation is simple and easy;
The equipment power supply adopts a switch mode power supply design, and can work normally with AC100~240V voltage;
※ Network interface: standard RJ45;
Supporting protocols: TCP/IP, UDP, IGMP (multicast);
※ Audio format: MP3/MP2;
Sampling rate: 8K-48KHz;
※ Transmission rate: 100Mbps;
※ Audio mode: 16 bit stereo CD sound quality;
Output frequency: 80Hz~16KHz;
Harmonic distortion: ≤ 1%;
Signal to noise ratio:>70dB;
※ Rated power: 2 × 20W (8 Ω) standard plug-in terminal block;
※ Line input sensitivity: 350mV standard plug-in terminal block;
※ MIC input sensitivity: 5-10mV;
※ 2.4G transmitter specifications: 100 * 33 * 18mm;
Directional: Capacitive single directional;
Sensitivity: -38 (dB);
Frequency response range: 40-16K (Hz);
Carrier frequency: 2400-2482MHz;
Modulation method: GFSK;
RF power: 0dBm;
Wireless transmission distance: 15-20 meters;
※ Operating voltage of transmitter: 3.7V polymer lithium battery;
Continuous working hours: 8-12 hours;
※ Environmental temperature: 5 ℃~40 ℃;
※ Environmental humidity: 20% to 80% relative humidity;
Power consumption: ≤ 70W;
※ Input power supply: AC100~240V 50Hz;
※ Size: 285 × 170 × 190mm;
Weight: 5.5Kg;

RH6730GL (with 2.4G microphone and offline playback function)

※ It has the function of actively taking over tasks when the network and server are disconnected, and can achieve automatic playback when the terminal is disconnected;
※ Comes with 4G large capacity memory, programs are transmitted to SD card storage through the network;
Built in high-precision timing digital clock chip, with power-off timing not less than 3 years, and network timing function;