Main Features‎:‎ ● Aluminum alloy rhombus pattern shell‎.‎● Steel tune trope to present stable and stereo music‎.‎● OPC material cable‎,‎ avoid twisting‎.‎● 3.5mm plug‎,‎ compatible with most devices‎.‎● With comfortable earbuds‎,‎ convenient to wear in a long time‎.‎ Function‎:‎ Answering Phone‎,‎Microphone‎,‎Noise Cancelling‎,‎Song Switching Connectivity ‎:‎ Wired Application‎:‎ Computer‎,‎For iPod‎,‎Mobile phone‎,‎Portable Media Player‎,‎Sport Cable Length ‎(‎m‎)‎‎:‎ 1.2m Driver unit‎:‎ 9mm Frequency response‎:‎ 20‎-20000Hz Impedance‎:‎ 16ohms±15 percent Sensitivity‎:‎ 95 ± 3 dB Package weight‎:‎ 0.118 kg Package size ‎(‎L x W x H‎)‎‎:‎ 12.00 x 2.50 x 21.00 cm / 4.72 x 0.98 x 8.27 inches Package Contents‎:‎ 1 x Earphones‎,‎ 4 x Earbud