We are CND industry group Co. Ltd based in , China. We are member of Tradekey.com since November, 2011. Our business is related to Consumer Electronics industry and we specifically deal in USB flash , earphones, MP3,4,5. Please find our product details below: Ear-Hook Digital Stereo Headphones Digital stereo headphones with ear-hook: Frequency Range: 20Hz-20, 000Hz, Impedance: 32 Ohms, Cord length: 1.2m, Plug: 3.5mm stereo. Thank you for taking the time to go through our business profile. If there are any question, inquiry or comments, please feel free to contact us.