Smart ping pong paddles remix music to the speed of play
 

I love playing table tennis, but my backhand topspin is average at best. I'll play for an hour and grow tired of chasing wayward balls, knowing that I'll never have a smash quite like Peco from Ping Pong. Never mind -- now I can cut loose with a game...
https://www.engadget.com/2016/10/17/...m-remix-music/