Features:
- Horn size: 13 millimeters
- Earphone battery: 30 mAh
- Microphone sensitivity: -42 dB
- Impedance: 320+15%
- Bluetooth version: 5.1
- Frequency range: 20 HZ-20 kHz
- Charging compartment battery: 300 mAh
- Headphone jack: C-type
- Charging voltage: 5V1A
- Packaging: 1 * Earphones
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