Descriptions:
-3.5mm stereo earhooks for MP3/MP4/CD.
-MP3 earphones with adjustable wire hooks, comfortable to wear.
-Headphones with RoHs/CE available as demand.
-Stereo headset with 3.5mm plug fits directly into most players, laptops, and portable CD/DVD players. So you can use earphones in all of your products!
-Ear hook headset with buyer's specifications accepted.
-Package: PE bag / blister case / color box, or any others as needed. 

Specifications:
-Driver unit: Dia 15mm
-Impedance: 32ohms
-Sensitivity: 109dB+/-3dB
-Max input power: 15mW
-Frequency Response: 20Hz-20,000Hz
-Cord length:1.2m+/-3%
-Plug type: 3.5mm stereo