headset,stereo headset,usb headset,pc headset,ear headset,notebook headset 1 year warranty. headset,stereo headset,usb headset,pc headset,ear headset,notebook headsetSpeaker: Φ40mm Dynamic type Sensitivity: 105dB +/- 3dB (at ... Cable Length: 2.5m +/- 0.3m Microphone: 6*5mm, -54dB +/- 3dB Plug Type: Φ3.5mm Stereo headset,stereo headset,usb headset,pc headset,ear headset,notebook headset