Microsoft XB3MICB4F001 Xbox 360 Wireless Controller 

Manufacturer: Microsoft 
Model: XB3MICB4F001 

Xbox 360 Wireless Controller 
High-performance wireless gaming is here! Using optimized technology, the Xbox 360 Wireless Controller lets you enjoy a 30-foot range and up to 40 hours of life on the two included AA batteries-and when they run low, you're given ample warning so you can connect a Play & Charge Kit for uninterrupted play. Plug the Xbox 360 Headinto the controller for full two-way voice communication: a wireless first. 

Features
Microsoft Xbox 360 Wireless Controller
2.4GHz wireless technology with 30-foot range 
Use up to four controllers simultaneously on one console 
Integrated headset port for Xbox Live play 
Adjustable vibration feedback for longer battery life 
New left and right shoulder buttons are designed for ease of use 
Use the Xbox 360 Guide button to keep track of your friends, access your games and media, or power on and off your Xbox 360 console