Osprey helicopter exterior design simulating models using high sculls structure and application of the new four-channel 2.4G control with powerful, flight stability, fast response, anti-interference ability and other characteristics, the main fuselage lightweight, simple, flying extremely stable power output stable, strong, and energy-efficient. Remote control using the latest 2.4GHZ frequency-hopping technology, automatic frequency, automatically assigned ID, precise frequency, the frequency of the individual can be more than one aircraft while flying, while fine-tuning button with memory function, and fine-tuning button buzzer indication light will flash when the battery voltage is low, low voltage alarm function, a number indicates the size of the power output.could do ascending,deascending,turn left,turn right,forward,backward,fly left sideward,fly right sideward Specification: Item No: M993 Battery for helicopter: 7.4V 1500mAh Li-Polymerv Flying time: About 6-8minutes Charging time: About 90 mimutes Controlling distance: 60-80 meters Battery for controller: 4 * AA batteries (not included) Helicopter size: 38 * 21* 38 cm Helicopter weight: 600g Package size: 44 * 41 * 21cm Certificate:EN71 EN62115 6P CD ROHS EN60825-1 ASTMF963 CPSIA FCC RTTE+N Package Include: 1 x 100% Brand New 4-Channel 1 x Remote Control (4"AA" batteries not include) 4 X Main Blade 1 x USB Charger 1 x helicopter battery 1 X Instruction Manual 1 X screwdriver