They claim that a 15-minute charge from the case gives 3 hours of battery life. That seems fairly usable -- perfect for a charge-up during bathroom breaks.
A perfect solution, because there's no way in hell you'll ever want to take these into the bathroom. Tilt your head to the right and plop, you just dropped $75 in the toilet.
At least in a toilet it'll be right next to all the other turds Apple has come out with over the years.
whamlastxmas>> You must be a modern day version of one of Aesops Fables.