BlackBerry Desktop Power Station + Extra Battery Charger. Includes power supply for Blackberry 8300 8310 8320 8330 - ASY-12733-005 Provides simultaneous charge for BlackBerry smartphone, extra battery and Bluetooth Headset 1.6 Amp power supply for rapid charging of multiple accessories Constant current and voltage for rapid and consistent charge 1 year warranty from RIM Works for Curve 8300 8310 8320 and 8330 only