This kit essentially includes all the cords required to link a Wii to a TV. That’s a composite Wii-TV cable, a power supply cable, and a Wii sensor bar. Nothing more, nothing less. The next time you move your console to a different TV, the Wii Migration Connection Kit means you won’t have to move the cables that feed into your Wii, because they’ll already be attached to your spare TV set, thus saving about a minute.
The kit is on sale in Japan for ¥4200 ($45), which is all kinds of hilarious. Worth noting: out of curiosity, I hit up eBay and found you could buy everything in this box for around $17. In other words: naff off, Nintendo.