... characteristic :20-20000HZSpeaker impedance: 32ΩSpeaker diameter: top 6U diaphragm, 10mm diameterRated output power: 3mWSensitivity: 97 ± 3dbWire Specifications: 3.8 * ... phone and ipod and shuffle4.Stylish design to fit your iPod, iPhone,ipad,laptop or other MP3players5.With special cable design,enough ... the button on the mic,and answer and end calls In ear earphone for cellphone ipod ipad laptop mp3