Plantronics S11 Headset - Mono - Wired - Over-the-head - Monaural - Semi-open - Noise Cancelling Microphone - TAA Compliance 65148-11

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.