If you’ve ever been interested in strengthening your pelvic floor but you’ve been unsure how to do it consistently, this makes it pretty simple.The Elvie Trainer is a revolutionary device that makes working out your pelvic floor incredibly easy, surprisingly fun, and discreet.100% waterproof medical grade silicone Companion app is iOS & Android-compatible.) Elvie is a small, smoothly shaped, waterproof pod that you slip in just as you would a tampon.