headphones,headphone,stereo headphone comuter headphone. earphone. 1 year warranty. headphones,headphone,stereo headphone Speaker: Φ40mm Dynamic type Sensitivity: 105dB +/- 3dB (at 1K Hz ) Freqency Response: 20Hz-20, 000Hz Max Input Power: 100mW Cable Length: 2.5m +/- 0.3m Microphone: 6*5mm, -54dB +/- 3dB Plug Type: Φ3.5mm Stereo headphones,headphone,stereo headphone