• Inline volume and mute control
• Designed for the demands of an active lifestyle
• Comfortable, adjustable headband
• Noise-canceling microphone for crystal-clear calls
• Easy hands-free conversation; supports safer driving

The Plantronics lightweight headset is designed to free your hands while you drive or work with a wireless phone. Though the unit's noise-canceling microphone makes it especially suitable for calls placed over a cell phone, it's also appropriate for use with traditional office phones.

Recipients of our phone calls reported no annoying disturbances or distortions during conversation, and audio quality on our end was clear as well, if a bit muffled. The headset works best on phones that feature good volume controls, because the microphone adjust switch raises and lowers the volume in a very narrow range.

The M175 also has the nifty feature of converting from a headband to an over-the-ear-style headset. Unfortunately, this also makes for a somewhat flimsy construction. Pieces immediately began falling off the unit as soon as we removed it from its packaging, though snapping the components back in place took little effort.

Overall, the Plantronics M175 headset is a versatile, quality headset for those looking for a hands-free way to work with their mobile or cordless phones. --John Frederick Moore

Pros:

• Lightweight design
• Good sound quality

Cons:

• Headset microphone has narrow volume range

Increase your productivity and comfort with the Plantronics headset for cordless or mobile phones. Using a headset can increase your productivity by allowing you to handle other tasks, like cooking or driving, while talking on the phone. Additionally, the use of a headset can reduce neck, upper back, and shoulder tension, allowing for a more comfortable work environment. To deliver superior sound quality, this headset includes a noise-canceling microphone, a Plantronics RF noise shield, and a microphone adjustment switch.

Convertible headset design - headband or over-the-ear / In-line control for volume and mute Whether you consider health, stress management or convenience, this headset is a really important accessory for you

I've used both the M170 and M175C headsets extensively with both cordless and cell phones. The 170 is the same except for lacking a listening volume control and mic mute switch on a pod in the middle of the cord.

Both headsets are comfortable enough to wear all day (with headband), sound great receiving and good transmitting, and have effective noise-cancelling. The 170 is simpler and does not have the volume/mute pod swinging around on the cord, and the 175 adds the convenience of these functions. Over a period of years, the volume control can get scratchy, so the 170 lasts longer.

The main fault of both headsets is that the mic volume isn't quite loud enough, even with the mic switch on max. I'm not even sure why there is a mic switch -- it NEVER needs to be turned down. When the other person has trouble hearing me, I unplug the headset and use the phone directly, and the volume increases noticably for them. This is usually not a problem unless the other person is in a noisy environment, but I wish the headset mic would be as loud as the phone mic. Perhaps this is a side-effect of the noise-cancelling mic feature and would require an amplifier to overcome. If I could buy a battery-powered supplemental mic amp, I would. Plantronics, are you listening?

I'm about to buy another M170 as my old one has died. These headsets have died for me by rough treatment causing damage to the plug or plug wire, or -- on the 175 -- the volume control getting scratchy. Overall, this is a very good headset and the best value I know for the money.

I connected this headset to my cordless telephone, and it worked very well. It far outperforms the audio quality of "cheapie" headsets I got at Staples and Wal-Mart, and it is more comfortable too. The ear piece has a good cushion. It is not perfect; you cannot talk softly. However, if you speak up, nobody can tell you are using a headset! It certainly beats the option of getting a $200+ special business headset, and I am using this headset daily for business calls. It is a good value and it performs.

What a deal....at least $10 cheaper than in the stores. Great quality and recommend it to anyone.

I got these because I started a new job where I work from home and will be on the phone a lot. Have been using these for about 2 weeks now and they are very comfortable. I have been surprised at how comfortable these are after wearing them for most of the day, and the clarity you get. The folks on the other side of my calls have no issues on hearing me. I would agree that on first blush, they don't look very solid since its mostly plastic (trade-off for weight), the reception and voice quality are very good. As long as you don't abuse them, they should last a while and the price is very reasonable. I use these with my Blackberry 8330 and Panasonic KX-TGA931T cordless phone without any problems. Per other reviews, the volume control has very limited range, but I can use those on my BB or phone. The mute feature works and is convenient on the cord. Overall, great value. I hope to get at least one year of service from these. Have not tried the over the ear feature, but I prefer the cushioned padded ear piece.

M175C Convertible Over-Ear/Head Mobile/Cordless Telephone Headset
We use this headset on our Sales Floor and since purchasing it, the chatter and noise from other reps have been eliminated. Also, as a result of no background noise, our sales representatives are able to be properly understood and are able to make more sales. I highly recommend this product, it has solved one of our largest issues in our sales department.