Hello Chuckie, that's a really good question! You can get up to 13 hours of battery life when you are on the go with a case that doubles as a wireless charger. One full charge provides up to six hours of play time and the charging case provides up to an additional seven hours when they are stored and charged between use. Running low on power but in a rush to get out the door? A quick 15-minute charge in the case will get you up to 1.7 hours of play time. However, the battery life will vary depending on your personal usage. ^Elizabeth