World’s Smallest Production Quadcopter Not only is the Proto X the world’s smallest quadcopter, it’s also one of the world’s lightest! The 1.8″ x 1.8″ Proto X is tiny, ideal for indoor flying — and it weighs only four-tenths of an ounce and it only costs $39. Facebook Prev Article Next Article Gadgets Checkout these cool gadgets... Related Posts Wallbot The Helicopter Bicycle Convert VHS to MPEG ? easy ! Chainless Bike Voice Responsive Alarm Clock This Robot Stick Makes Skateboards Go as Fast as a Car