Bests & Worsts Reviews from Amazon

Obviously unlike all of the 5 star reviews, I actually used this product before reviewing. After about the first month of use the battery life began to decline. 3 months in and now I'm lucky to get 4 hours of use and I assume it'll only get worse. I understand all rechargeable batteries eventually lose their life but there's no excuse for only lasting a few months. Spend more for something better. Update: The seller messaged me and offered to send me a new one in exchange for taking my review down. I replied telling them that they're welcome to send a new one, but my review will stay unless it proves to be better quality than the one I purchased. I never heard back from them nor did I receive a replacement , so I assume they're fully aware they're selling bad quality products. Final update: 5 and a half months in. I now get about 1 hour and 15 mins of time out of one full charge. I will soon be purchasing a new, preferably much higher quality option, as my workouts are usually an hour and a half. This product is very disappointing.