MI0154W Features Superb sound effect In-ear design to keeps noise out Built-in microphone for callings on the go Adjusts volume as you wish Universal 3.5mm plug Convenient 1.2 m flat cable General Specs Brand & Model LANGSTON JV04 Sound Bass stereo sound Earphone Type In-ear earphones Microphone Yes Volume Control Yes Impedance 32 ohms Frequency Response 13Hz-22.5kHz Sensitivity 110dB Connector 3.5 mm audio jack Cable Length 1.2 m Compatibility Samsung， HTC， Nokia N95 and other Android phones equipped with a 3.5 mm audio jack Package Details Weight: 48.15 g Size: 16.5*11.3*2 cm