Yison B4- Red Portable Wireless Overhead Foldable Headphone
Product Description:
- Product Type: Headphones
- Model: B4
- Wireless version: V5.0
- Drive unit: 10mm
- Transmission distance: ?10m
- Impedance: 32?±15%
- Sensitivity: 93dB±3dB
- Music time: About 5 hours
- Call time: About 3.5 hours
- Battery capacity: 3.7V/110mAh
- Charging time: About 1.5hours
- Standby time: About 188 hours
- Input voltage: Micro USB/ DC5V/ 500mA
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