Wireless Lavalier Microphone for One-to-One Live Recording with Noise Reduction. 1. Enables high-definition, long-distance audio capture for live webcasting, video vlogging, interviews, educational videos, and more. 2. Features automatic noise reduction, reverb, monitoring, playback, and mute functions. Can be used for live streaming while charging your phone. 3. 2.4G wireless connection, automatically pairs on startup for simple operation. 4. Compatible with mobile phones, computers, and other devices without requiring an app. 5. Built-in optimized antenna design ensures signal stability and real-time monitoring. 6. Full-range pickup with strong anti-interference capabilities effectively identifies original sound, meeting the needs of noisy environment recording. 7. DSP intelligent noise reduction chip filters out excess noise and restores human voice. Parameters: 1. Microphone: Digital silicon mark 2. Input Voltage: 5V 3. Microphone Battery: 300mAh 4. Receiver Battery: 300mAh 5. Continuous Use: 6 hours 6. Signal-to-Noise Ratio: 64DBM 7. Transmission Delay: 30MS 8. Sensitivity: -42DB 9. Frequency Range: 20Hz-20KHz 10. Transmission Distance: 20m-30m without obstacles 11. Size (with color box): 12.1 x 8.1 x 3.1 cm 12. Weight: Approximately 25g