The World's Smallest Indoor Remote Control Helicopter
Last year I bought myself an indoor RC helicopter, and I thought it was the coolest thing ever. Now I wish I had this one instead. It's the smallest, most stable, and lightest remote control helicopter available. It has two contra-rotating coaxial rotors that use gyroscopic inertia to keep the copter balanced and two micro-motors that spin the rotors at varying speeds, resulting in precise and effortless movement up to a range of 50'. Did I mention how small it is?