Kegel exerciser uses an IOS or Android phone app and Bluetooth 4.0 technology to provide 6 separate training courses to excercise the pelvic floor muschles. Users receive advancing rewards at various course levels. Also works in non-app mode. Device uses a rechargeable battery, cord included, and is fully waterproof. Multiple sensors ensure accuracy of biofeedback. Handheld cord doubles as antenna. Device measures 3.2 in. by 1.2 in.