Plantronics M170 Mobile Phone Headset

Convertible - 2.5mm connection - Mobile/Cellular/Cordless Phones
$35.95 from an Authorized Plantronics Distributor

The Plantronics M170 & M175 mobile headsets offer hands-free convenience for your active lifestyle. Keep both hands on the wheel while driving and enjoy additional productivity in the office and on the go. Its convertible design can be worn as a headband or an earloop on either ear, depending on whether you want greater stability or convenient small size. The adjustable noise-canceling microphone keeps your voice crystal clear, even in noisy environments. Comfortable, durable, and lightweight, it also works with headset-ready cordless phones.

Plantronics M175 Reviews: (Write Your Own Review)

Review for the M170 over-the-ear headset - Linda W. from Cherry Hill, NJ
For the most part I like this headset.  We were able to hear the conversation better than before.  The only drawback is that you aren't able to just push a button to answer or disconnect a call.