MI0166L Features Stylish appearance with superb stereo sound effects Built-in microphone for hands-free calling Universal 3.5mm plug Features volume adjustment function Convenient 1.2 meter cable General Specs Brand & Model VYKON mk-1  Type In-ear earphones Volume Control Yes Cable Length 1.2 m Compatibility iPhone， iPad， iPod， MP3 player and cell phones with a 3.5mm audio jack Earphones Sound Excellent super bass stereo sound Frequency Response 50Hz-20KHz Impedance  16 Ω Sensitivity 92 dB ± 3 dB Rated Power 1 mW Maximum Power 32 mW Microphone Unit 4.5 x 2.2 mm Impedance  2.2 kΩ Sensitivity 42 dB ± 3 dB Rated Voltage 3V Peak Voltage 10V Current 0.5mA Package Details Weight: 149.80 g Size: 17.1*9.2*4.5 cm