SX9 1 TX + 2 RX Smart Noise Reduction Lavalier Wireless Microphone(8 Pin)

1. Input voltage: 5V 2. Microphone battery capacity: 200mAh 3. Receiver battery capacity: 200mAh 4. Battery life: 12h 5. Signal-to-noise ratio: 64dBM 6. Sensitivity: -42dB 7. Frequency response range: 20-20kHz 8. Transmission distance: 15-30m 9. Digital output and analog output, can use 8 Pin interface mobile phone, 3.5mm interface multi-function all-in-one 10. Automatic noise reduction, reverberation, monitoring, external speaker, mute 11. 2.4G wireless couplet, automatic connection when powered on, simple operation 12. Suitable for mobile phones, computers, tablets, speakers, amplifiers, cameras and other devices