Purchased this as a back-up for my husband who can sometimes forget his headphones or forget to charge them. Sound quality is good but not noise cancelling like those $300 ones which is understandable but is perfect for commuters who like to enjoy music while walking in a busy city without compromising environmental awareness when crossing roads, or trying to hear train announcements. Fits very well and does not fall off even when running. Battery life is pretty good considering it is only used for about 2 hours in a day, it could last about 3 days. Not sure how battery life is if being used all day. Might get one for myself in a different colour!