Using headsets in the office is a key part of the modern workday. VOIP calls are quickly replacing traditional phone services and helping companies save on big telecom costs. The Lenovo Essential Stereo Analogue Headset is made for VOIP, offers an easy-swivel Mic boom, comfortable ear pieces, and plug and play with most Lenovo PCs Comfort fit mono earpiece; Adjustable headband and boom microphone; 180 Degree Microphone