I estimate 10-15 hour battery life. Secondly; one time the buds got caught on something and came loose from the hooked case itself causing me to drop the unprotected buds case on the ground (which is notably counterproductive to its purpose). I chose this because it was high gloss white to match the sanitary ware and wanted it to be less obtrusive and blend with the decor when not in use. I tried this brand in this style comfort slides and found out how very wide they run. Fast Deliver. Bass not so great, but the 40 (alleged) hours from the snap shut tidy case and 700ma battery in it are great. We have the Moana ones. Voice is so distorted and unclear! These earphones are the best budget earphones on the market, period. However, my son put these on twice and the entire side came unglued.