YESIDO KR15 Dual Low-latency Wireless Lavalier Microphone with 3 in 1 Receiver 1. AI environment noise reduction Restore a purer voice: Reduce other sound interference, effectively restore the original sound quality, and ensure effective recording of human voices in noisy environments 2. Clear recording of the original sound clear voice, restoring authenticity: The chewing sound of food and the sound of drinking water are all truthfully recorded, giving the audience a sense of immersive experience 3. Premium large microphone core, non-destructive sound pickup, clear characters: Fearless of cost, a high-end capacitor microphone is used, paired with high-quality windproof cotton to avoid wind and noise interference 4. 20m wireless transmission for more free recording: Stable audio source pairing, maintaining voice synchronization within 20 meters, ensuring unrestricted reception 5. Long Endurance: Built-in 70mAh button cell, suitable for live streaming and filming from morning to night, not afraid of no electricity Specifications: 1. Microphone type: Digital silicon microphone 2. Antenna type: Ceramic antenna 3. Transmission frequency: 2.4GHz 4. Frequency response range: 20Hz-20KHz 5. Transmission time: 20ms 6. Battery capacity: 70mAh (button battery) 7. Charging time: about 80 minutes 8. Working hours: 7 hours 9. Transmission distance: 20 meters (barrier free) 10. Receiver: 8 Pin+Type-C+3.5mm port 11. Receiver battery capacity: 230mAh 12. Operating time: 10h Packaging list: 2 x Lavalier microphone 1 x Receiver 1 x User manual 1 x Type-C charging cable