Recommended (wireless) trackball mouse

[Tito Mari Francis Escaño]

Hi misc,
I'm exploring options for a preferably wireless trackball mouse, can
somebody please recommend a verified OpenBSD-friendly working brand and
model?
I'm looking at Kensington Slimblade or Kensington Expert Trackball Mouse.
Has anybody made them work (wirelessly)?
Kindly advise.
Thank you very much.