The battery can function as a charger for the phone, sending power to the phone's battery, or as a battery backup that stays connected to the phone while calls are being made. Because of the foldable design it can also be used as a viewing stand. It contains enough power for 8 hours of talk time, 15 hours of video, or 80 hours of music. Charging the unit is handled through a standard mini-USB connector, which aslo enables syncing with iTunes.
