Fosmon's Blackberry 8800 USB Sync Charge Desktop Docking Cradle with Second Battery Charging Slot Compatible with Blackberry 8800, Features an extra battery charging slot (WARNING: This charging cradle does not work with CDMA carrier such as Verizon/Alltel/US Cellular/Sprint brand Blackberry 8830) Plug-in and Sync! No side cable required. Unique design! Compatible with USB and USB2 port; Comes with a LED indicator Synchronize and charge at the same time; Support PC and Mac Comes with Fosmon Technology 1 year Warranty. Buy Genuine Fosmon!