Product name:Stereo Earbuds zipper,
Usage:pour MP3,MP4,iphone,ipad.ect.
Cable:120cm
Material: plastic for zipper,earbuds in metal,puller in Metal or PVC
Net weight: about 30grs
Frequency response: 20-20,000hz
Headphone type: In-ear
Speaker Size: 10mm , Plug 3.5mm stereo  
Impedance: 32 ohms±15% ,Plug 3.5mm stereo ,
Cable length: 60cm or 40cm
Power: 10mW 
Sensitivity: 108dB±3dB/mW  
Packaging in PET tube box or paper gift box
zipper color: red,yellow,pink,blue,purple,black,white,green