I've used a Plantronics amplified headset at work forever and I could not live without it. This one is not as good. The ear piece is odd and hard to get all the way in the ear canal requiring the volume to be set high. The voice tube is not quite long enough or curved enough to get in front of my mouth. Overall it is difficult to get a good fit and it definitely requires two hands to get it on the ear. I note however, that just about every other mobile phone headset has similar if not worse problems. I have found none that have the ear piece like the one I use at work, a soft earplug type that goes well into the ear canal and blocks out extraneous noise while eliminating any real need for an attachment to the outer ear. The sound quality of the MX510-X1 is reasonably good, both listening and speaking. Overall its a competent but not outstanding product.