?Description: Weight:100g Color:red｣ｬblack｣ｬpurple Compatible Model:iPhone 4S Cable Length:1.2m Impedance: 16 ohms Plug type: 3.5mm stereo Speaker diameter: 10mm Sensitivity: 102dB｣ｬ S.P.L. at 1kHz Frequency response: 20Hz-20｣ｬ000Hz  Each item will be tested before delivery Fashionable compact｣ｬlight-weighted stylish Makes your handsfree while driving or on the road This item is very easy to use and carry wherever you go With answer\/end key located in the earphone for your phone  Package included: 1*Microphone Earphone  More detail:    black     red     purple