Plantronics M220C has been discontinued. Please consider the innovative Plantronics MX500C
as an alternative with the same 2.5mm plug at the end of the cord.
Plantronics M220C is made for use with cell phones, desk phones or cordless telephones with a standard 2.5mm headset jack and features an outbound voice volume control. Also features a noise-canceling microphone to block out background noise so your callers hear less of it and more of you. Ear hook is soft and bendable so it conforms to the shape of your ear and stays put. The Plantronics M220C can be worn on either ear. Covered by one-year factory warranty.