Specifications:  AC Adapter For XBOX 360/XBOX 360 SLIM Color:Black Input Voltage: AC 100-127V 47-63Hz Output voltage: DC 135W 10.83 A Size: 17 x 7 x 5.2cm Supplied with USB Cable Features: Never Run out of Battery when you are in the Middle of Games Battery Can be Charged Through any USB Port Fits Directly into Conrtroller Battery Compartment It is Made of High Quality Cells and Utilizes Thermal Protectors and Circuit Breakers to Maximum Efficiency, Reliability and Safety of the Battery Compatibility: Compatible with: Xbox 360 Wireless Controller This Adapter replaces any lost or broken AC power adapter for the Xbox 360 Slim systems. The AC Adapter has a LED indicator light to display the power status of the Xbox 360 Slim system, and its auto voltage feature allows the adapter to be used worldwide Simply Pop the Battery Pack into your Controller and you'll Never have to Worry about Buying & Replacing AA Batteries ever Again When the Battery is Running out of Power, you Just need to Simply insert the Chargeable Battery into your Wireless Controller and there will never be a need to Replace the Battery again, to Charge the Battery Pack - - - Simply Connect it to the USB Port on the XBOX 360 Charge with Indicator RED=Charging Green=Fully Charged