well they have two versions:the 19.99 version for one charger...or the better deal(if u have at least two wii remotes)is the 29.99 version. and the battery case (that fits on the back of the remote) has a grip on it...but i have only seen this one at best buy
Everyone that is reading dont even buy one it will ruin your wiimote while its charging it will burn the back of your wiimote my friend got it and it broke within the first chargeing of it just go buy a rechargeable batterie pack and rechargeable batteries they cost like 10 bucks each for 4 batteries and a pack its way better believe me.