HIGH-QUALITY NIMH RECHARGEABLE BATTERY PACKSELIMINATES THE NEED FOR EXPENSIVE DISPOSABLE BATTERIESUP TO 20 HOURS OF PLAY PER CHARGEBATTERY GAUGE ACCESSIBLE THROUGH THE XBOX(R) DASHBOARDCOMPATIBLE WITH MICROSOFT(R) WIRELESS CONTROLLER FOR XBOX 360(R) PLAY & CHARGE KIT & QUICK CHARGE KITALSO COMPATIBLE WITH THE NYKO(R) CHARGE STATION CHARGE BASE 360 & POWER KITCE APPROVEDShipping Dimensions : 1.25in X 4.00in X 4.50inEstimated Shipping Weight : 0.25