Instruct: Classify Amazon reviews into positive or negative sentiment
Query: shocking - literally

JBuds Hi-Fi Noise-Reducing Ear Buds (Black)Rather than simply dying, the right ear bud has been shocking my ear while I am listening to music. After the third use it started doing this repetitively, usually about 10 minutes after turning turning on my music.Although this seems to be rather rare (most complain that the right ear bud dies after 3 months), I imagine that a common design-flaw is responsible.I will be seeking a refund.(Added after initial entry): The sound quality, however, was totally acceptable for a $20 pair of ear buds.After contacting JLabs about the problem, I was promptly sent a replacement at no charge.