Your most personal training device and app for strengthening pelvic floor muscles. This discreet kegel device was designed by women for women to offer a fun, sophisticated solution for strengthening pelvic floor muscles. Because it can be difficult to exercise a muscle you cant see, the sleek, silicone Elvie device connects wirelessly to an app on your phone to provide real-time biofeedback, offer customized routines, and measure your progress. Exercising this set of small but important muscles can strengthen your core, enhance sexual satisfaction, improve bladder control, and assist with preparing and recovering from pregnancy. - Interactive 5 minute routines practiced 3x a week strengthen in just 2 weeks. . - 100% waterproof medical grade silicone device in a comfortable pebble shaped design. . - Dimensions (7.5 x 3 x 3.2 cm) . - Includes quick start guide, discreet carry case that doubles as a charging pod, micro USB charging cable, and optional cover for custom sizing. - Compatible with iPhone 4S, 5 and 6 and Android 4.3 and above. . - 1 year warranty. . Please note that we cannot accept returns on intimate products. If your Elvie doesnt seem to be working please contact firstname.lastname@example.org and we'll be happy to help.