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 aXbo Alaram Clock knows when to wake you up Unmanned Helicopter – Drone The Throwable Ball Camera Bike + Scooter + Rollerblade = The Trikke Robot Drummer And Pole Dancer SeaBike – Device for Rapid Movement in the Water