... 3,high sound quality OEM&ODM Flat cable metal earphones Description:Extra rugged build with aluminum housing, flexible ... isolating fit, and a rugged travel case.Works with every iPod, iTouch, iPhone 3G/4G, Kindle, iPad, mp3 player, ... Ships in Certified Frustration-Free PackagingComfortable in ear metal earphones Specification:Speaker Dia.:10mmImpedance:32ohmSensitivity:105dB±3dBFrequency:20-20k ...