Features

• Integrated network speaker, with medium-gray wooden cabinet and iron mesh grille;
• 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;
• Built-in Class D stereo 2×30W power amplifier circuit, with delicate sound quality and strong power;
• Equipped with 6.5-inch mid-bass unit and 3-inch tweeter unit, delivering clear speech performance;
• 1 set of RCA line input and 1×6.35mm microphone input interface, with independent volume adjustment;
• Local adjustable network volume;
• 1-channel audio power output, for connecting external 1×30W 8Ω fixed-impedance speakers;
• 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;
• Standby power consumption less than 10W, meeting national environmental protection and energy-saving certification standards;
• 1-channel data serial port, which can be used for data query or as an expansion function port;

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: 80Hz ~ 18KHz;
• Harmonic Distortion: ≤1%;
• Signal-to-Noise Ratio (SNR): ≥80dB;
• Rated Power: 2×30W;
• Line Input Sensitivity: 3.5 standard audio terminals;
• Operating Ambient Temperature: -20℃ ~ 70℃;
• Relative Humidity: 20% ~ 80%, non-condensing;
• Power Consumption: ≤80W;
• Input Power: AC100-240V 50Hz;
• Dimensions: 300×200×195mm;
• Weight: 4.8Kg;