For owners of a Sky-Watcher V.3 hand control box who want to upgrade to the new V.4 SynScanTM hand control box with its new functions: You can update the firmware of the new hand control box via the Internet, it contains improved positioning accuracy (PAE) and can save the alignment routine data. You can also connect a GPS mouse. (The cable from the controller to the mount is not included) Scope of delivery: Hand control box !Power supply and batteries are not included in the scope of delivery!