The Plantronics EncorePro HW510 headset is a lightweight, economical, over-the-head design. The EncorePro HW510headset has one ear pad which can be easily switched from right to left ear. The noise-canceling microphone is ideal for noisy office environments as it minimizes the amount of background noise your callers will hear. Comes with Plantronics Quick Disconnect™
feature which acts like an on-hold function if you need to walk away from your desk while still wearing your headset. This complete package includes the Plantronics M22 Vista amplifier which connects the EncorePro HW510 headset to your telephone. The M22 Vista is compatible with most single- or multi-line corded desk telephones. Runs on two AA batteries (included) or optional AC adapter (sold separately). Covered by 2-year Plantronics warranty. Click photo to enlarge.