Skywatcher SynScan Goto V5 Updateable Handset
For V2, V3 and V4 owners wanting to upgrade, the V.5 SynScanTM hand control includes features such as:
Firmware-updateability via the internet,
Pointing Accuracy Enhancement (PAE), and
capability to store star alignment data.
Built-in USB socket for firmware updating.
Also can accept GPS mouse attachment.
(n.b. handset cable not included - available separately)