You're in the middle of the most intense tournament of your life. Your most skilled opponent is closing in on you, but you know you can beat the odds. Suddenly, your wireless controller dies. In a flash, your enemy steps up and defeats you. Don't let your battery get in the way of your victory. Stay charged longer with the Pro Power Kit for Xbox 360.The Pro Power Kit 360 is CE-approved for safety and includes 2 rechargeable NiMH battery packs and a USB play-and-charge cable. Play your favorite games longer with battery life that lasts up to 20 hours per charge. Make sure your wireless controller remains charged by plugging the charge-and-play cable into your Xbox 360's USB port. Keep track of just how much power you have remaining thanks to the battery gauge that's accessible through the Xbox 360 Dashboard.