SX6 1 TX + 2 RX Lavalier Wireless Microphone with Digital Display Charging Box 1. Input voltage: 5V 2. 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. Suitable for long-distance high-definition sound recording for live broadcast, video VLOG shooting, interview sound recording, video teaching and other occasions 10. Automatic noise reduction, reverberation, monitoring, external speaker, mute, can charge the mobile phone while live broadcasting 11. Wireless couplet, automatic connection when turned on, simple operation, support for two people 12. Can be used for mobile phones, computers and other devices without APP 13. Comes with a charging compartment to charge the microphone 14. Convenient storage, portable when going out Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store