IP4465W Features In-ear earphones with superb sound quality Built-in microphone for hands-free calling Convenient 1.2 m flat cable Universal 3.5mm plug General Specs Brand & Model Langston JM-12  Sound Excellent bass stereo sound Type In-ear earphones Microphone Yes Volume Control N/A Impedance  32 ohms Frequency Response 13Hz-22.5kHz Sensitivity 110 dB Connector 3.5 mm audio jack Cable Length 1.2 m Compatibility iPhone， iPad， cell phone， tablet PCs and other portable devices with a 3.5 mm audio jack Package Details Weight: 29.96 g Size: 18.5*7*2 cm

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