1. Input voltage: 5V 2. Microphone battery capacity: 70mAh 3. Charging compartment battery capacity: 300mAh 4. Battery life: 6h 5. Signal-to-noise ratio: 64dBM 6. Sensitivity: -42dB 7. Frequency response range: 20-20kHz 8. Transmission distance: 15-30m 9. Transmission delay: 30ms 10. Supports long-distance high-definition sound reception for live broadcast, video VLOG shooting, interview sound reception, video teaching and other occasions 11. Supports automatic noise reduction, reverberation, monitoring, external speaker, mute, and can charge the phone while live broadcasting 12. Wireless couplet, automatic connection when powered on, simple operation, supports double use 13. Applicable to mobile phones, computers and other devices without APP 14. Convenient storage and portable when going out
