RC Helicopter ART-TECH Shark 450This helicopter is 450 class, parts are metal and Fiberglass. It has fantastic appearance and 3D aerobatic capacity!Specification:Length: 640 mm/25.2 inHeight: 228 mm/9 inWeight: 780 g/27.5 ozMain rotor diameter: 700 mm/27.6 inTail rotor diameter: 154 mm/6.1 inFlight time: approximately 15-20 minutesConfiguration:- R/C System: ETC61-2.4GHz-V2- Head lock gyro: AR-EG301- Brushless motor: R2815AH- Brushless ESC: 40A- Li-Po battery: 11.1V 2200mAh- Servos: 4x9gFeatures:- 120 degree CCPM system.- Tail rotor with belt drive system.- Auto-rotation system.- late-model with fiberglass frame.- High Strength Aluminum alloy material with exquisite and consistent titanium color.- Standard configuration with beautiful and durable carbon blade.