Revolution Dumbbell

Who knew that something like dumbbells could actually move forward in the digital world by getting a modern upgrade? At least, that’s what the Revolution Dumbbell offers – allowing one to digitally adjust the weight by rotating a dial and pushing some buttons. Deep inside are small balls that spin, where the faster they spin, the more weight they generate. I wonder what the battery life is like on this thing, but it is one way to carry around your exercise equipment without being bogged down by all the weight.