Feature:1. Product specification: Bluetooth protocol 2.4G channel2.Battery life: 5H microphone3. Charging time: 2H4. Transmission distance: 20M, human obstacle distance 10 meters5. Product features: AI automatic noise reduction, reverb, and muting6. Compatible devices: mobile phones, tablets 7. with 2 microphones, digital display and charging compartment7. Support headphone monitoring (compatible with TYPE-C interface headphones)8. Sound delay 30ms9. Omnidirectional pickup microphone 38dB 3dB10. Frequency response 20Hz-20KHz11. 48KHZ sampling rate12. Signal to noise ratio 64dB13. Working current 11-12mA14. Shutdown current 2-3uA15. Microphone battery or battery life 80MAH or 6H16. Charging compartment battery 600MAH 18. Charging compartment battery charging voltage DC4.8-5. 2v17. 5V or 1A adapter 5V or 2A18. Working temperature -10 - 45 degrees Celsius 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.