Juice Pack Air, 1000 mAh lithium polymer batteries, has the power to add 34 hours. The battery is nearly double the capacity of the iPod battery is integrated.
Recharge the battery about 100 minutes. Charging can be done when the phone is turned off. Juice Pack Air using a USB cable, which supports both charging and iPod sync.
Juice Pack Air is available in three colors, black, red, and blue, priced at US$ 50 per package.
