Plantronics Telephone Headset

 Plantronics® S11 Telephone Headset System offers hands-free convenience
 and comfort, and includes an over-the-head headset for stability with a
 noise-canceling microphone for superior sound clarity.

Adjustable over-the-head headset provides all-day comfort
Noise-canceling microphone reduces background noise for crystal clear calls
Universal amplifier is compatible with virtually any phone