Description
Specifications:
1. Microphone: Wireless microphone
2. Input voltage: 5V
3. Microphone battery: 110mAh (2 pcs is 220mAh)
4. Charging compartment battery: 800mAh
5. Battery life: 9 hours
6. Signal-to-noise ratio: 64DBM
7. Transmission delay: 30MS
8. Sensitivity: -42 dB
9. Frequency response range: 20-20KHZ
10. Transmission distance: 20-30m (barrier-free)
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