Instruct: Classify a review into positive or negative sentiment.
Query: Doesn't last

I've bought 3 of these and they never last for more than 3 months at a time. The sound starts to go and then becomes on and off. You have to play with the jack and not move it or you won't be able to hear person on other end. Good price but not worth replacing every few months. Pay a little more and get Plantronics headset.