How to connect Flipsky electronics

As he said : custom order

does the maytech remote receiver V2 work okay with 5v or must it be 3.3v?

To everyone who cares. Version VESC4 can be seen in the photos of NURBUL.

With 5-3.3V

hey mate did find out anything about the remote I have a flier 300 a and was wondering if the Flipsky remote would work with it to?