This wall projection makes gym class a giant video game Lü is an interactive light projector with 3D cameras. It’s designed to be the focus of gym classes. Facebook Prev Article Next Article Gadgets Checkout these cool gadgets... Related Posts The Gun Camera Never Empty Beer Mug WTF Is This? Rollerblade – Scooter or Bicycle? Automatic Toilet Seat Covers Hover Your Precious Objects – Levitron Home System Allows You To Use Any Object As a Device = PizzaBox Is Laptop