Plantronics EncorePro HW540, Monaural Headset, Noise-Cancelling

Choice of three comfortable and easily switchable wearing styles - over-the-ear, over-the-head or behind-the-neck - offers more flexibility from a single headset to suit a wider range of user preferences
The new design is extremely light, offering users a more discrete headset and improved comfort for longer calls
Soft, luxurious ear cushions for excellent audio quality, while providing all day comfort
Visible guidance so the user can see when the boom is moved into the proper range for optimum microphone positioning
Higher-quality wideband audio meets official TIA920A standards and noise-cancelling microphone help raise the standard of phone conversations
Quick Disconnect supports multiple connectivities from USB, audio processor or Direct Connect and allows users to easily move away from their workspaces without removing their headsets