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.
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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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