From the Manufacturer
The brand new 3 channel gyro mini metal RC helicopter is on of the world's newest, smallest and lightest RC helicopter you can get! At approx. 7.5" long, it easily fits in the palm of your hand and is fully functional, equipped with latest Gyroscope technology, which makes this helicopter an instant hot seller in the RC workd. This mini Gyro Metal Helicopter charges directly either from the USB cable or from the controller which uses AA batteries and has a full-function tril control for the perfect flight.
Syma S107G is equipped with a 4-in-1 infra-red receiver (Gyro, ESC, Mixer, Receiver). This palm size S107 Toy Helicopter (18.5cm long) comes with Aluminum Frame and a Great detail canopy. It is able to move in 3 Direction base on the 3 Channels, anyone can hover it easily. Since it is made with Aluminum Frame, very light weight and almost indestructible in any crash.