EP0436B Features Stylish earphones with stereo sound effects Noise reduction function Convenient 1.2 meter cable Can work with all audio devices with a 3.5mm audio jack General Specs Brand & Model Langston iM-12v Sound Excellent super bass stereo sound Earphone Type Wired headphones Microphone N/A Volume Control N/A Impedance  32 Ω Drive Unit 40 mm Frequency Response 20Hz-20KHz Connector Gold plated 3.5 mm audio jack Cable Length 1.20 m Magnet Type NdFeB Sensitivity 105 dB Compatibility iPhone 4S/5/iPad/iPod， Samsung Galaxy， HTC， Black Berry， Smart Phone， MP3/MP4 player and other audio devices with a 3.5mm audio jack