The lenovo 100 stereo usb headset is a perfect blend of on ear business ready stereo usb headset with rotatable boom microphone and passive noise cancellation for clear audio for voip calls'. '.strtoupper('i')t works with all leading unified communication platforms'. '.strtoupper('i')t is lightweight for all day wear with comfortability leather and memory form earcups'. '.strtoupper('w')ith 30 mm drivers with neodymium magnets, it delivers great audio for voip calls as well as for music'. '.strtoupper('a')djustable headband and boom microphone allows either left side or right side wearing'. '.strtoupper('y')ou'll have easy usb a plug and play connectivity and a robust 1.8m cord'. '.strtoupper('f')eatures and benefits plug and play with usb a rotatable boom microphone for either right or left side wearing leather and memory form earcups for all day comfort tech specs color black connection type usb2.0 type a cable length type 1.8m weight 137g 0.30lb audio out na warranty cru controls na distortion 3% driver 30mm