GENIUS 500 CLASS AND 250 CLASS COMPARE 
:: Specifications :: ★. Length: 515mm/20.3in ★. Height: 210mm/8.3in ★. Weight: 255g/9 oz ★. Diameter for main rotor: 390mm/15.3in ★. Diameter for tail rotor: 103mm/4in ★. R/C System: ETC61-2.4GHz-V2 ★. Brushless Motor: B2030-25S ★. Li-poly Battery: 11.1V,800mAh ★. ESC: 20A Brushless ESC ★. Servo: 5g×4   :: Features :: ★. Powered by a Li-Po battery and brushless motor, the helicopter can fly outdoors in breeze and is an excellent indoor model. | 
