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Portable Hands Free For Cellular/Mobile Phone  (NEMHF) | | |
 Product Feature | 1.The best companion for MP3 and Mobile phone
2.Clear sound, easily communication
3.Free product from the harm of Hertzian Waves
4.Enjoy the surround sound and have muisc more alive and vivid
5.Soft material and comfortable for wearing | | | |
| Product Specifications | Microphone
1. Sensitivity: -60dB+2dB (0dB=1 V/ubar,1KHz)
2. Directivity: Omnidirectional
3. S/N ratio: More than 60dB
4. Frequency Response: 20Hz~20KHz
Speaker:
1. Size: 23mm
2. Impedance: 150ohm or 32ohm
3. Sensitivity:-110dB
4. Frequency Response:20Hz~20KHz
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