My back's been messed up for years and my physical therapist recommended one of those percussion massage guns for muscle recovery. Look it up — the "medical grade" ones are $400-600, come with a pamphlet about "myofascial release," and half of them need an app. Meanwhile I'm scrolling Amazon and find the literal same motor, same attachments, in a case marked for "pet grooming and deshedding," for $38. Same RPM.