Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I hate it. It's not for me.

Sound level is unbearably low compared to all my other earphones. For the one I got from Amazon, right channel sound is lower than left channel sound. Bass level is too low. To hear bass, you have to insert it all the way into your ear. It's very uncomfortable to do that. I feel my ears swollen. There is no way I can do that when jogging. I have to return it back to Amazon.