Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Work well but fit is very uncomfortable

I had this headset for three years and used it every day for work, several hours a day. The overall quality of the construction of the headset is average. The sound is above average. There are additional controls on the cord which are convenient and while the +/- volume dial worked well, the mute toggle stopped working after about a year. The major downfall of this headset, and the reason for 2 stars, is the poor fit and subsequent discomfort and headache after wearing them for one hour or longer. This made them virtually useless since I needed them for video conferencing several hours each day. I purchased them because they folded up for travel, came with a hard case, and were rated well. I would not purchase them again.