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S1902 Miccell TWS ANC Wireless Earphone (VQ-BH70)
1. BT 5.0
2. Function: ANC active noise reduction (single feed)
2. Chip: bluetrum 8892
3. Talking/music time: 3.5H
4. Charging time: 1 hour
5. Noise reduction decibel: 25dB
6. Battery capacity: 320mA in the charging compartment and 40mA in the headphones.
7. BT link: 10m
8. Horn: 10mm