I have used the original Hello Direct cordless headset for a few years. People often complained that they couldn't hear me well and asked me to speak louder. I often ended up switching to the regular phone.

So I retired that headset and bought a GN Netcom 9020D. The clarity was as good as the CS10, but I would hear an echo of myself. I called Hello Direct and bought another 4-line telephone that they claimed was compatible, but the echo remained.

So I finally bought the CS10. I almost did not because of some of the negative reviews here on Amazon.com, especially in regards to Plantronics' service should something go wrong, but pain was starting to creap back into my neck and I had little choice but to at least try. I have been very pleased with this headset and I highly recommend it. Setup was far more straightforward than with the earlier headsets that I owned: I didn't have to change any of the default switch settings.

There is, of course, room for improvement. One thing that I always liked about the Hello Direct and the GN Netcom headsets was that the transmitter was mounted on the headset itself. I wish Plantronics would revise the CS10 to make the headset an all-in-one unit instead of having the transmitter as a separate unit linked with a cord. Or at least include a holder or holster where one can tuck away the transmitter (this should not be a separate purchase, IMHO).

Headset volume a problem (Rating: 2.00)
Review : I found that the headset volume for this phone was low, even when I adjusted the volume all the way up. Perhaps I could buy a better headset to fix this problem. But why should I have to?

It work as advertised! (Rating: 5.00)
Review : I home office and needed the ability to write orders, check files etc. while talking with clients. The CS-10 works extremely well and the callers have no idea I am using a headset. The incoming and outgoing quality is great! I would recommend the phone lifter for remote answering.

I tried two other cheaper products that were poor quality and either sounded like I was talking into a bucket or were "distant" sounding.

This was the best price anywhere ... although it has increased in price recently.

bought 12 units, its saving each of us at least 1/2 hour/da (Rating: 5.00)
Review : About a year ago 5 sales, 2 purchasing, and 3 traffic staff plus IT/accounting switched to these units. Installation is simple, batteries have held up good. We live on the phone. It's freed us from our desks without missing calls. Phone time is much more productive. We pull and send the documents to our customers while they are still on the phone. We can even "walk" them through departments, ask questions, getting answers right then and there. Remember to use the mute button if you do not want the caller to hear what other people are saying to you! I took a customer that called in through the warehouse describing the package labels to him over the phone. I take the dog for a walk and still get my calls. Reception is poor 80 feet from the base unit in a concrete building. I can't wait for the next generation -2,400 mhz systems, it will enable us to take a call anywhere in the facility.