Card Reader     SmartCombo Series     EasySIM Series     ExtreMe Series   Hub     SmartCombo Series1     ExtreMe Series   Mouse     ExtreMe Series   Earphone     BestCom Series     ExtreMe Series   Laser Presenter   Keyboard   Accessory               Home > Products > ExtreMe Series > EP-300       ExtreMe Series EP-300 Dynamic Hi-Fi Stereo Earphone Hi-Fi Stereo Surrounding Effect Live Band Sounding Performance True High-Sensitivity Mic     Features Music + Cellular Synchronizing Use Microphone On / Off for Voice and Music Dynamic Bass-driven & Hi-Fi Stereo Surround Effect Live Band Sounding Performance Full-range Acoustics Output Excellent High-sensitivity Mic. Twist-resistant Nylon Cable Elegant and Metal Finish Outlook Application for iPod / MP3 / CD / DVD Audio player Cell Phone compatible to O3.5 phone jack : Design for iPod / iphone / HTC Smart Phone / Music Players         Specifications Mic. : O 4.5mm ( Dia. ) Speaker : O10 x 32Ω x 6u Mic. Sensitivity : -58 ± 3dB (0Db=1V/ubar) Impedance : 32Ω ± 15% at 1K Hz Sensitivity : 97dB ± 3dB Power Output : 5 ~ 20mW Frequency Response : 20 – 20,000 Hz Cable Length : 1.5 m Weight : 15g Jack : O 3.5 mm gold plating