Specifications:
1. Speaker parameters: 49.8mm x 10.1H MM
2. Sensitivity: 110 ± 3dB at 1kHz 1mW
3. Frequency range: 20Hz-20KHz
4. Rated/maximum power: 10mW/20mW
5. Microphone parameters: sensitivity -40 ± 2dB at 1KHz
6. Impedance: f=1KHZ, 1Pa (<2.2K Ω)
7. Wire interface: USB power, DC3.5 audio
8. Cable length: about 2m
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