the cord free wireless adaptor for wii nunchuk

Convert your standard wired Nunchuk into a wireless peripheral with the new cord-free wireless adapter from Nyko. The convenient adapter adds a single self-standing sleeve for the wired Nunchuk and a battery case at the bottom of your Wii remote. Not only does it rid you of the messy cord, but it also offers a 15 feet range. The compact cord management system keeps your cord organized and out of sight. Running on two AAA batteries, the adapter is good for 60 hours of continuous game play. The adapter is scheduled to be released on February 20 and will retail for $20.

Source: Nintendo Wii FanBoy