Compatible Brand:For ipod，For Apple，For HTC，For LGConnector(s):3.5mm JackFrequency range:7-31000HzEarpiece:DoubleFit Design:In-Ear OnlyFeatures:Built-In Microphone，Noise CancellationHeadphone sensitivity:108dB ��2dBCable Length:1.2m��0.05mUnit diameter:6.8mmImpedance:16��Earpiece Design:Earbud (In Ear)