this is worth every penny you spend i doesnt disappoint in any way delivery was 2 days and charged it before using and i have been using it for 10 hours straight and its still 90 charge i dont know currently how much time it would last though i wont count till then because i trust the brand and so far battery looks awesomethe sound quality is different from the boat rockerz i was using as it consists more mettalic type of bass and it feels amazing its easy to use by just seperatin