This is called the "Smyth's Big Box" And, predictably, it's only at Smyth's stores & online. It includes the Sonic wiimote holder figure (By Cable Guys), a Sonic 'cross body bag' (so, like a flatter hip-pack/belt-bag/fannypack but worn over one shoulder so it sits on the chest area-ish. This has running Sonic on the red nylon belt part, and a classic logo on the bag. Then there's a blue water bottle (plastic) with the Sonic 1 wing ring/start screen logo. It also has that odd little apparent replica of the wiimote holder...but it's actually a key cap. The key fits in the block shaped base and the figure/base becomes the 'handle' for that key. It has a key clip on top.

The other items are a bit of a dud, but are somewhat expected with wacky 'box sets' like this. There is a generic blue rubbery springy key cord, and a blue USB cable. The Wiimote holder already comes with its own micro USB cable. Extra generic items are often included to pad the item-count and hopefully make people think there is more value in the set. It's common with school bag sets and party sets.
Springy key cords aren't particularly useful (tangle, get pulled, etc) and a blue usb cable has nothing to do with Sonic. The key cap is an odd little item as well, as it is impractical. It's way too big to fit into a pocket, so it would have to go in a hand bag or purse, or exterior dangle keychain. Then, to turn the key in the lock you have to grip the whole big figure? It seems like more of a gimmick that you'd end up putting for display instead of to use. At Smyth's some people say the water bottle is of dubious quality as well.