They work by not only targeting the muscles you can visibly see, but even the core muscles. Some of the muscle groups that are all activated are the rectus abdominis, transverses abdominis and the obliques.
It is great for anyone who wants to firm their abdominal muscles. It is not specifically designed to help you lose weight. Customers report that it gives them the kind of toning that is much harder to obtain from their workouts alone. The “cons” of this system are minor. The system needs 3 AAA and takes a lot of battery power so it is recommended to use high quality rechargable batteries. The gel pads will need to be replaced regularly and these can be purchased online for great prices.
Read more about the SlenderTone Ab Belt