Meet the Slendertone Connect Abs Workout Belt: an app-enabled core toning device that connects to your smartphone using Bluetooth and lets you work on your core muscles even when you don’t have time for intense ab workouts.
According to the developer, you should see a firmer core in 8 weeks, if you do everything right. The belt fits waist sizes 24 to 42 inches. You can customize the intensity level of each session from your smartphone. More information is available here.
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