SX23 1 TX + 2 RX Lavalier Wireless Microphone with Digital Charging Box(Type-C)

1. Input voltage: 5V
2. Microphone battery capacity: 80mAh
3. Charging case battery capacity: 800mAh
4. Battery life: 6h
5. Signal-to-noise ratio: 64dBM
6. Sensitivity: -42dB
7. Frequency response range: 20-20kHz
8. Transmission distance: 20-30m
9. Digital output and analog output, mobile phones can be used
10. Support noise reduction, reverberation, two-way monitoring, audio input, mute
11. Wireless couplet, automatic connection when powered on, support for two-person use
12. For mobile phones, computers, tablets, speakers, amplifiers, cameras and other devices