- 40mm speaker, powerful 3D surround sound.
- Fully enclosed noise cancellation, make calls clear.
- Independent button control, easy function switching.
- Soft and comfortable caps, light and adjustable arm.
- Brand: USAMS
- Model: US-YN001
- Bluetooth Version: 4.2
- Communication Range: ≤10m/32.81ft
- Speaker Sensitivity: 121dB ± 3dB
- Frequency Response: 50Hz-50KHz
- Impedance: 32Ω
- Speaker Diameter: 40mm
- Battery Capacity: 250mAh
- Continuous Listening Time: About 10 H
- Headphone Charging Time: About 2 H
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