DX: WLtoys V911 4CH 4-Channel 2.4GHz Mini Gyro Single Radio Propeller RC Helicopter 

WLtoys V911 4CH 4-Channel 2.4GHz Mini Gyro Single Radio Propeller RC Helicopter (Model 1)
Product link:dx.com/p/123220
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- Item No: WLtoys V911
- Color: Orange
- PVC material
- Built-in gyroscope
- Flying time: About 5~6 minutes
- Charging time: About 30 minutes (USB charging)
- Features: up/down, left/right, forward/backward, hover
- Controlling distance: About 80 meters
- Flying height: 50 meters
- Powered by 1 x 3.7V / 130mAh lithium battery
- Helicopter size: 22 x 5 x 8.2cm
- Helicopter weight: 27g
- Remote control size: 18.5 x 14 x 7.6cm
- Remote control weight: 210g
- Package size: 25.5 x 25.5 x 8.5cm
- Package weight: 520g