Summary: I have the Plantronics CS50 and my headset got up and walked away because it is nowhere to be found. After my grandson threw my first one in the trash, I ordered a replacement and it paired and worked just fine. Somehow I ordered the CS55 this time and, even though they look identical, I tried & tried and it would not pair with my CS50. They did take it back though & were great about it. I love this Plantronics unit and miss having it so much.
Summary: I love the CS55 headset for my cordless phone. I had my old one for about 6 years and needed a new one due to some static issues. I found the replacement piece, called Plantronics direct to ask if it would work with the cordless phone model and they said it would. Loved that as it saved me money. The only problem I had is that the replacement part did not come with instructions on how to sync the base and the new headset.
Summary: I have tried 3 or 4 different bluetooth headsets for my office phone but finally decided to stay with the Plantronics one because it is the most comfortable one and the sound quality is definitely the best. The handset lifter works great so you won't have to push buttons and lift handsets and .... It just makes things a lot easier. Great product!
Summary: Not all headsets are created equal and Plantronics has lots of offerings, some of which are marginal. This one is a heavyweight. Great volume in your ear and great clarity for the person at the other end. I like the handset lifter best so I can answer and/or end a call without returning the the base station. Reception is excellent. I can use this anywhere in my house.