Plantronics H171 DuoPro headset with voice tube microphone
and Plantronics M22 Vista amplifier.
Earpad floats over ear rather than pressing against it; compatible with most single-or multi-line telephones; versatile headset can be worn over-the-head or over-the-ear (comes with both attachments); one-button selection between headset and handset for ease of use; separate controls adjust outgoing volume, incoming volume and mute.
Convenient Quick Disconnect acts as on-hold function so you can walk away from your phone while wearing headset. Plantronics M22 Vista amplifier runs on two AA batteries (included) or optional A/C adapter (sold separately as accessory). Both headset and amplifier are covered by a 2-year factory warranty.