Yiboo 4703 Mini Metal Gyroscope 3.5 Channel Infrared RC Helicopter Red:The 4703 Mini Metal Gyroscope Infrared Helicopter is a 3.5 channel mini indoor co-axial helicopter. It comes equipped with a high grade metal body frame and a built in Gyroscope which is used to stabilize the helicopter heading. This model is miniature in size and its light weight makes it incredibly portable so you can take it anywhere you go. It also offers a wide infrared control and a design that is customized for indoor flying. For being only 19cm in length and weighing in at only 34grams, this mini helicopter packs a lot of power. The UJ4703 is controlled by a 32-Level high precision speed controller, it automatically stabilizes the rotor blade system for steady lift off.