With an adjustable over-the-head design the S11 Telephone Headset System brings hands-free convenience and comfort to home and office workers who rely extensively on the phone. Compatible with virtually any phone this system features a single-ear headset that lets users keep an ear on their surroundings. A noise-canceling microphone and Call Clarity technology filter phone and room noise keeping communications clear and free of annoying background noises.
This is the Plantronics S11 replacement/spare headset. This headset plugs directly into Plantronics S11 base with modular (square) plug. This headset is the replacement for your existing S11 system only. It will NOT work with any other Plantronics amplifier.