Plantronics Encore Pro HW525 USB Binaural On-Ear Headset Overview: Over-the-Head Noise-Canceling and Flexible Microphone Compatible with PCs via USB Fits Over-the-Head Wideband Audio up to 6, 800 Hz Sound Guard Acoustic Limiting Lightweight, Robust Design Laser-Welded Construction, Metal Joints The Encore Pro HW525 USB Binaural On-Ear Headset from Plantronics when combined with optional Plantronics Manager Pro software, offers a fully integrated audio and asset management solution providing all-day users with enhanced audio, comfort, and durability, and IT managers with management capabilities. The adjustable headset features a super-lightweight, robust design and soft, audio-optimized ear cushions for all-day comfort. Intuitive inline controls let you answer/end calls, control the volume, and mute. Items Included With Your Purchase1 x PLANTRONICS Encore Pro HW525 Stereo USB Headset