Color White Brand N/A Model DM-2570 Quantity 1 Piece Material ABS Shade Of Color White Interface 3.5mm Wireless or Wired Wired Powered By OthersPower Free Headphone Frequency Response 20~20000Hz Impedance 32±15% ohm Microphone Frequency Response No Sensitivity 94dB S.P.Lat 1KHz Sound Card No Other Features 1) Note: This headphone does not have volume control button2) Standard 3.5 mm plug pin fits for different kinds of multimedia device such as IPOD mp3 mp4 PSP mobile phone and personal computer 3) One sided design of the earphone line makes you wear and remove the headphone easily 4) Wide head beam and lightweight design makes you feel more comfortable when you use the headphone Packing List 1 x Headphone 1 x Audio Cable (1.2m)