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. From the Manufacturer Syma S107G 3.5 Channel RC Helicopter with Gyro in Red color scheme. Flight Control Includes Up/Down Left/Right Turn and Forward/Backward movements. Includes USB Charger and Spare Tail Blade. For Use Indoors ONLY Due to Infrared Control. Battery Type: Lithium Polymer (LiPO Battery). C Rate: 15C. Volts: 3.7. Capacity: 150mAh. Cell Count: 1S. Continuous Discharge: 15C (2.25A). Watt Hours: 0.56. Motor Type: Brushed. Age Rating: 14+ With Adult Supervision. Charger: USB. Radio: Infrared. Fuel Source: Electric. Length: 8.7 in (220.98mm). Height: 1.5 in (38.1mm). Width/Diameter: 3.9 in (99.06mm).