Handheld massager gizmo

[Fortis Virilis]

Are there any chiropractors or massage specialists here? Could you recommend one of those personal handheld massagers? I get knots in my shoulders, back, hammies, and calves and I see a chiropractor about once a week, but I want to try one of these out for the other days. If anyone has suggestions or information on these, I would appreciate hearing from you.

Thanks,