The sound quality is excellent.

The sound quality on my old headset was so good, it almost sounded like you were sitting in the same room with all the other people on the call.

Audio cancelling is more like it.. quality is poor!I have tried the blueparrot

Great quality for this price.

Horrible sound quality and echo when attached to our cordless phone.

Good quality, noise cancelling.

Amazing quality.

Audio quality is very good for a headset with so few options in the price range.

support).- Wired is always better sound quality than wireless all else being the same, however as time marches forward folks have a tougher time telling the qualitative difference between top quality wired and wireless

Even when I could hear them, the audio quality was poor

The sound quality on this headset is very clear and it's easier to hear the caller using the headset.

That said, these two headphones are considered to have the BEST SOUND QUALITY OF THE PLANTRONICS

Great quality sound, people can hear me fine, as I can hear them, and ear pads soft on the ears.

Sound quality so poor it is unusable.

Better quality

These are NOT as high quality as those that come with the EncorePro, but folks who tried them out for me marginally prefer them over the foam.

Sound quality is good at both ends of the conversation

Very good quality, would highly recommend, even purchased one for my mother-in-law for Christmas.

The sound quality is good enough every customer can hear you say " THank you for your business"//////

Microphone is very poor quality

Good quality, noise cancelling.

The sound quality is exceptional and the mic picks up everything loud and clear for my customers.

The audio quality is also very bad

While the Plantronics brand is always a good quality product, it is a pain that one can not simply purchase a product that can plug into the phone without purchasing one or two additional cables except for a review by another Amazon customer, I would have not realized that.

Ordered as a replacement to existing Plantronics and the sound quality is great

There are no wired nor wireless Plantronics headsets with better noise reduction (source: support).CONCLUSION:-------------Plantronics positions these headsets as having the best sound quality of the their models with noise reduction

The Voistek A2H20J35 was absolutely the best quality by far, both hearing and speaking

The sound quality of the caller is excellent, however everyone I spoke to either heard the sound cutting out or claimed I sounded like I was in a tunnel.

It doesn't fully encase your ears, but it's got excellent sound quality on both my end and the receiver's

While the sound quality has been considerably better than the lesser expensive ones I've purchased from Plantronics, It's extremely frustrating to continually be buying headsets - especially relatively expensive ones

This is a great product; easy to use with great audio quality

the quality of sound is good

It works well, sound quality is excellent.

It works well, sound quality is excellent.

I've never experienced any tin can sounds or crackling and have not had anyone tell me that the sound quality is bad, either

These work as they are supposed to in my situation, no amplifier needed