It is a nice beefy battery. Might be a little bass heavy for some. My toddlers daily shoes! You will not be disappointed. For the price, I think these are good ear buds, if the fit works for you. I don’t like the phone. Very cozy and seem thick and well made. Long press the phone button, per the directions, for it to scan the stations. Constant on and off until I just let my feet freeze. Not enough air circulation.