Belt-Clip Battery Case with USB Port

This is a Belt-Clip Battery Case that holds 4 AA batteries. The DC power output provides USB compatible power source as if it is from the computer. The USB Port, in this case, allow you to use your gadget without having to plug it into the computer. You have the freedom of using your gadget by taking it with you using this belt-clip battery case. The 4 AA batteries are not included. Buy more if you are on the go (or in the woods.)