Style: In-EarLine Length: 1.2mResistance: 32ΩRetail Package: YesSensitivity: 108DB(S.P.L at1KHZ)Connectors: 3.5mmFunction: Waterproof、 Noise Cancelling、 Microphone、 Common Headphone、 For Routine Office Work、 For Mobile Phone、 Portable、For iPod、Sport、Supports musicWith Microphone: YesFrequency Response Range: 20-20000HzBrand: CosonicModel Number: W1