Elvie Trainer is an award-winning pelvic floor trainer that helps improve bladder control, support postpartum recovery and enhances intimate health. Simply place inside and Elvie Trainer connects to an app that guides you through fun, five-minute workouts. 6 unique exercises 4 different levels: training, beginner, intermediate and advanced Gold standard pelvic floor biofeedback technology Product Features Optional cover for custom sizing The world's smallest pelvic floor trainer, with an optional cover for custom sizing and comfort. Free downloadable app Compatible with iPhones 4S, iPad3 and Windows and Android phones 4.3 and newer versions that support Bluetooth Smart / Bluetooth Low Energy (excluding Huawei phones). Rechargeable battery with carry case that doubles as a charger Discreet and portable, complete with a carry case that doubles as a wireless charger (micro USB) so that you can workout anytime, anywhere. Personalised targets and reminders Easy-to-follow, 5-minute workouts designed by pelvic floor and gamification experts to be fun and effective. Achieve fast results: 8 out of 10 Elvie Trainer users feel improvements, 98% of whom notice a difference within 6 weeks. Stay motivated by viewing your workout in real time with biofeedback technology, personalised targets and seeing your results improve over time on the app. Cutting edge technology detects and alerts you if you're exercising incorrectly