I got this for my son as a Christmas present.The first thing we notice is the transceiver is about the size of a mouse and attached with a long cord to the computer's USB. This talks to the trackman so while you can say the trackman itself is cordless, you need another unit with a huge cord to use it. The amount of cords you are packing is the same as a corded mouse with the addition of the large trackman. Most cordless mice/trackballs use a small USB dongle, not an external box.Look closely at the product pictures and you will see this external corded transceiver.What's the point? If you want cordless it's so you don't have to deal with cords.