WLtoys V930 Power Star X2 4CH 2.4G Brushless Flybarless RC Helicopter Rotor Diameter: 244 mm; Body Length: 270 mm; Height: 77mm ;Weight: 46.5g Battery: 3.7V 450mAh 25C ;Flight Time:About 7-8 minutes Features: 1. Flybarless FP helicopter, aerodynamically designed to achieve unparalleled stability 2. Battery 1S 3.7V 450mAh 25C 3. Brushless outrunner (1106) motor 4. Transmitter has D/R switch, Throttle Hold switch, large LCD, low voltage warning. Hovering midpoint setting allows setting of the hovering point. 5. Helicopter flies at 6G mode using 6-axis gyro, allows stable flight, suitable for beginners 6. USB charger 2 at a time 7. Flying weight: 46.5g; Flight time: 7-8 mins Package Includes: 1 x WLtoys V930 Power Star X2 RC Helicopter, 1 x Transmitter ,1 x Charger ,1 x Battery ,1 x Manual