MI0125R Features In-ear stereo sound earphones Gives you endless listening enjoyment Convenient 1.2 meter flat cable Equipped with a microphone for hands-free calling General Specs Brand & Model OVLENG iP640 Sound Excellent super bass stereo sound Earphone Type In-ear wired earphones Microphone Yes Volume Control N/A Drive Unit 11.5 mm Impedance  16 Ω ± 15% Frequency Response 20Hz-20KHz Connector 3.5 mm Cable Length 1.2 meters Sensitivity 94dB-97dB Compatibility Samsung， HTC， Sony cell phones， iPhone， MP3 players Package Details Weight: 94.16 g Size: 12.00*14.00*4.2 cm Package Includes * OVLENG iP640 3.5mm Plug In-ear Stereo Wired Earphones with Microphone for Cell Phone & MP3 Player