Features

• Wall-mounted design, made of milky white all-aluminum alloy die-casting, with exquisite and elegant craftsmanship;
• Adopts domestic integrated chips and Linux system, featuring excellent stability, security, portability and flexibility, which is incomparable to single-chip solutions;
• CPU: ARM Cortex A7 @ 900MHz;
• Audio Codec: Supports software codec, compatible with G.711, G.726, ADPCM, and audio 3A (AEC/ANR/AGC);
• Standard 1×10/100M RJ45 network communication interface, supporting LAN and WAN deployment;
• Built-in 1-channel network hardware audio decoding module, enabling real-time/timed music playback;
• Sampling rate adjustable in the background, allowing free selection of the highest sampling rate in the LAN for optimal sound quality (supports WAV 8K/16K/44.1K, AAC 16K/44.1K/48K optional);
• Background hardware resource monitoring, displaying CPU and memory usage ratio, and continuous running time;
• The device supports remote upgrade of standalone and batch units in LAN and WAN, facilitating efficient and fast customer service;
• 4.3-inch color touch screen display, industrial-grade touch operation for human-machine interaction with sensitive touch feel;
• Excellent anti-interference performance, eliminating instability in infrared signal operation;
• Supports multiple operation modes (play, pause, select, previous track, next track, volume adjustment);
• Supports on-demand playback of music in the server's local media library;
• Equipped with factory reset icon, enabling one-click restoration to factory settings;
• Supports manual or automatic IP address acquisition;
• Supports password login authority management to prevent unauthorized operation;
• Built-in 2×30W fixed-output Class D power amplifier module, with excellent sound quality and strong power;
• 1-channel stereo audio output, compatible with external power amplifiers or active speakers;
• 1-channel stereo line input and 1-channel microphone input, with independent volume adjustment switches;
• 1-channel USB flash drive input interface, supporting local U-disk playback;
• 1-channel short-circuit signal input, for connecting linkage trigger signals to trigger terminal alarms in emergencies;
• 1-channel short-circuit signal output, for linking and triggering other devices in emergencies;
• Adopts 2.4G working frequency band, ensuring stable transmission of audio data within 10 meters in open areas;
• Supports multiple frequency modes: automatic search for clean channels and automatic pairing upon power-on, ensuring no frequency interference and transmission stability, allowing the same microphone to be used in any classroom;
• Adopts 48kHz sampling rate to ensure high-quality human voice, guaranteeing high-fidelity effect of received signals;
• Supports volume adjustment and one-key mute function;
• Supports PPT page turning and one-key screen blackout/restore function (this function is expandable);
• Built-in rechargeable 3.7V polymer lithium battery with 500mAh capacity, Type-C charging interface, fully charged in 2 hours for continuous use time ≥8h;
• Built-in analog audio signal backup module, supporting constant voltage 70V/100V signal input;
• Automatically switches to constant voltage signal input when no network signal is detected or disconnected, realizing dual-line redundancy;
• Standby power consumption less than 10W, meeting national environmental protection and energy-saving certification standards;
• Supports DHCP, compatible with routers, switches, Internet, multicast, unicast and any network topology;
• 15KV ESD protection, built-in network isolation and lightning protection circuit;

Technical Specifications

• Network Interface: Standard RJ45;
• Supported Protocols: HTTP, HTTPS, UDP, TCP/IP, RTP, RTSP, RTMP, MQTT, FTP, SIP;
• Audio Formats: mp3, wav;
• Sampling Rate: 8K – 48K;
• Network Transmission Rate: 100Mbps;
• Audio Mode: 16-bit stereo CD-quality sound;
• Output Frequency: 400Hz – 6KHz;
• Harmonic Distortion: ≤ 1%;
• Signal-to-Noise Ratio (SNR): ≥ 80dB;
• Rated Power: 2×30W, 8Ω;
• Local Audio Input/Output: 3.5MM standard terminals;
• Local Microphone Input: 6.5MM standard jack;
• Short-circuit Input/Output: Terminal-style Phoenix plug-in terminals;
• Operating Ambient Temperature: -20℃ ~ 50℃;
• Relative Humidity: 20% – 80%, non-condensing;
• Power Consumption: ≤ 60W;
• Input Power: DC19V/3A;
• Dimensions: 220 × 160 × 43mm;
• Weight: 1.28Kg;