as a matter of giving review about this product i m using dis from three week so giving 3 out of 5 because one plus didnt improve the sound quality at all they r giving same sound quality as the previous version except the bass bass is little bit high and most of all the battery life is good from the last version base edition but not as good as they are claiming 30 hours it is hardly giving 1516hours battery backup thats why i am giving the 3 stars for same sound quality a