The product will be permanently removed?
No Bluetooth needed, just insert the battery and it's ready to be used. It comes with the battery, 3 different nibs, and a tool to change them. Nibs are; hard, soft, medium. The devices it is compatible with are as listed in the pictures. I have never used it because I found my lost pen a day after I bought it. The battery may not work so you may need to buy a new one.