Main features: 1. Adopt SHIDU original sound amplification electroacoustic system; 2. Stylish, ergonomic and comfortable design; 3. Import IC make voice more clear 4. Work with any speaker with φ6.5mm MIC input 5. Receiver with function indicator lights 6. Visible Frequency point when pairing, avoided interfere with other UHF device 7. Metal case with subsilver spray,Pretty shell not easy scratched
