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The standard controller is wireless, running on two AA batteries out of the box. An optional $20 accessory kit includes a rechargeable lithium-ion battery pack and a USB cable that lets the controller charge while you play.
Even if the console is turned off, the controllers recharge if left plugged in. And since the headset microphone for online voice chat attaches to a port on the bottom of the controller, you can charge, play and chat all at once.
Also you can switch it on from the controller...
What features have you heard of?
![Posted Image](http://www.ebgames.com/ebx_assets/product_images/521175.jpg)