My trainer would go ape nuts for this concept. The Mint Dumbbell speaks. Workout programs can be personalized as a trainer walks you thru every rep. It even has sensors to smack warn you when you’re not in form. Working out with a set of dumbbells? These guys wirelessly communicate to keep you going. When all is said and done, the charging station charges/syncs and tattles sends all that data to your trainer. I imagine mine would just laugh uncontrollable at my feeble attempts.