High Performance Stereo Headphone with Super Bass and Microphone mpedance: 32. Rated Power: 15mW Sensitivity: 108db S.P.L. at 1 KHz Frequency Response: 20Hz-20,000Hz Power Capability: 150mW. Cable length 2.0M Microphone Unit: 6x5 mm- 58dB + 3dB. Plug Type: 3.5mm Stereo