EP0401B Features Superb stereo bass sound quality Convenient 1.2 meter flat cable Works with audio devices with a 3.5 mm audio jack  General Specs Brand & Model IDP-1000 Sound Excellent super bass stereo sound Earphone Type Wired earphones Drive Unit 10 mm Impedance  16 ohms Frequency Response 20Hz-20KHz Connector 3.5 mm audio jack Cable Length 1.2 m Compatibility MP3 player， MP4 player， personal CD player， PC， laptop and other audio devices with a 3.5 mm audio jack Package Details Weight: 43.87 g Size: 17.5*5*2.5 cm Package Includes * IDP-1000 3.5mm Plug Stereo In-ear Wired Earphones