Enjoy hands free comfort when making calls on your cordless phone! Experience the freedom & comfort of the M175C from Plantronics with exceptional sound quality & technology that rises above the rest! Sound quality is enhanced with a noise canceling microphone & pivoting mouthpiece that provides optimal voice clarity. Two wearing styles provide a secure & comfortable fit for all-day comfort. Highlights- Dual wearing styles let you choose the fit that’s right for you- The pivoting mouthpiece offers noise canceling technology so you can be heard clearly- Noise-canceling technology reduces background noise- One-touch volume & mute control with a microphone adjust switch provides optimal voice clarity- Secure & comfortable fit for all-day comfort with optional earloop for alternative wearing style- Works with headset ready cordless phones & most mobile phones