Features:

• 30-foot wireless range
• Integrated 2.4GHz high-performance wireless technology
• Ergonomic design enables maximum comfort and endless gameplay
• Left and right shoulder buttons
• Two Analog pressure-point triggers, two vibration feedback motors, eight-way directional pad are included

Editor Reviews:

Product Description:
The Xbox 360 Black Wireless Controller gives you 30 feet of room to play your favorite games. You'll get up to 40 hours of gameplay from two standard AA batteries -- or connect a Play & Charge cable for uninterrupted play. Plug the Xbox 360 Headset into the controller for full duplex voice communication - a wireless first. With quick access to Xbox 360 features including DVDs, music, pictures, and more, along with the ability to support four wireless controllers simultaneously, gamers can experience wireless freedom, precision, high quality, and performance for endless gameplay. Vibration Control with On/Off settings Xbox Guide Button gives you quick access to all your favorite Xbox 360 system activities

Rating : - Great design, as expected
It's rather a given that first party controllers are the best choice for expanding your set. This wireless controller has shown no qualms in connection or reliability. It has performed as one would expect. I'm not sure what else can be said about it. It performs as well as the controller included with the system. The black color scheme is my preferred skin and it looks like quality overall.