In order to use the Handcontroller for the EAF does the EAF has to be plugging into the PC, or is there a battery inside handcontroller? Please advise. Thanks
It has a 3.5mm socket like the headset, no battery inside handcontroller.
If you are using an ASIAIR or a ZWO camera, you can plug the power cable (USB-B to USB-A) into a USB 2 port of either of these. If you have neither of these, then you need to connect the power cable to a USB power source.
JohnD