Styled like the famous military rescue and transport Chinook twin-rotor helicopter. Designed for a very stable flight and lightweight construction to help it withstand most crashes. Digital proportional Remote Controlled Twin Rotor Coaxial Helicopter 3-channel Infra-Red Remote control. Fully controlled movements (Up / Down, Right / Left, Forwards / Backwards) Specifications Dimensions: 265 x 370 x 105 mm Frequency: Infrared Control System - Bands A, B & C Flight Control Area: 5 / 6 meters (Line of sight required) Flying time: about 6-8 minutes Charge time: about 20 - 30 minutes Helicopter batteries: Rechargeable Lithium Polymer Transmitter batteries: "AA"1.5V X 6 (Not Included) Suitable For Indor Flight Or Outdoor With No Wind Not recommended for children under 14 years old.