Dual Desktop Charging Dock w/Spare Battery Slot for Galaxy S2 (AT&T)
The dual desktop charging dock for the Samsung Galaxy S2 can not only charge your phone, it also can charge your spare battery at the same time.
To charge your Galaxy S2 just place your device into the dock and your done. If you have a spare battery you need to charge just place into the built in battery slot, it's that simple.
The dock has a Mini-USB port built into the back which you can use to charge your Galaxy S2 through the dock using the provided USB cable with wall adapter.