Features:

Works with current and futuer for Xbox 360 wireless accessories.
Uses intgrated 2.4Gigahertz (GHz) High-performance wireless technology
that lets you operate a wireless device from up to 30 feet away
Lets you use up to four wireless controllers and
four wireless headsets together with one wireless gaming receiver
Connects to a powered USB 2.0 port on a computer
Includes a six-foot USB cable

Specifications:
Size: 75*40*17mm(receiver size)
Color: Black
Cable length: approx 1.8m
Net weight:94g
Package weight:104g

Package includes:
1 x PC Wireless Gaming Receiver for XBOX 360
1 x CD