If you grew up anything like we did, TV commercials for workout machines were all the rage. From The ThighMaster to the NordicTrack, these home-based, over-the-phone-ordered machines were all the rage. NordicTrack has held on for decades, and they’re back with a new set of dumbbells set to completely change the way you work out with smart tech. Unlike the other best dumbbell sets that will save you from buying a gym membership, this 50lb set of dumbbells can be adjusted in 5lb increments with the use of nothing more than your voice. Yes, you read that correctly. You don’t need to adjust pads, pins, or other knobs by hand because iSelect allows you to adjust the weight as easily as you play your workout music–with Alexa. This adjustable set of dumbbells replaces twenty individual options, includes a digital weight readout, ergonomic square weight plates, and even a free month of iFIT.