Keeping the wires inside of a case can help them to last longer. (geekwrapped.com)
If you have the e-reader inside of the case and plug it into a wall charger or computer, both devices will charge at the same time. (goodereader.com)
Apple has decided to move the charging indicator light from inside of the case to the front so you don't to have open it to check if the earbuds have enough power. (technowize.com)