Dongguan Anhuan Electronic Co., Ltd.  

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1. Driver: Dia. 9mm Driver.
2. Impendance: 16 ohm+/-10%
3. SPL: 102dB+/-3
4. Frequency Range: 20-20kHz
5. Cord Length: 1.3M.
6. Plug: 3.5mm golden plated
7. Microphone: -45dB+/-3dB
8. For MP3, iPhone and Laptop
9. MIC+Volume Control+ON/OFF switch
10. Color: Optional