Feature:1. WLtoys V913 Brushless Upgrade Version 4Ch FP Helicopter RTF 70cm 2.4GHz Built-in Gyro Super Stable Flight2. High efficiency motor and surge power3. Convenient to fly in the dark or at night thanks to the headlight4. .2.4GHz gyroscope for extreme stability and precision5. It is suitable for both indoor and outdoor flyingSpecification:Description:Item Name: WLtoys V913 Large Single Blades RC Helicopter Brushless Upgrade VersionHeli Size : 70*12*21cmMain Rotor Diameter: 50cmTail Rotor Diameter: 13cmFrequency: 2.4GChannel: 4 ChannelControl Distance: About 150mFlying Time: About 8 MinutesCharging Time: About 60 MinutesTransmitter Battery: 4 * AA Battery (Not Included)Helicopter Battery: Rechargable 7.4V 1500mAh (Included)Functioin: flying Up, Down,Forward, Backward,Turn Right, Turn Left, Left Fly, Right FlyFeatures:1.Brushless motor version and switchable left & right hand control 2.High efficiency motor and surge power3.It is suitable for both indoor and outdoor flying4.Convenient to fly in the dark or at night thanks to the headlight5.2.4GHz gyroscope for extreme stability and precisionNote: Transmitter include 2 kind of mode,you could switch between mode 1 and mode 2.Package size: 67 * 23 * 14 cm / 26.8 * 9.2 * 5.6 inPackage weight: 1700g / 3.75 lbPackage Included:1 * V913 Helicopter (Brushless Version)1 * Transmitter1 * Built-in 7.4V 1500mAh Battery1 * Balance Charger2 * Main Blades1 * Tail Blade1 * ManualPackage List:1 * V913 Helicopter (Brushless Version)1 * Transmitter1 * Built-in 7.4V 1500mAh Battery1 * Balance Charger2 * Main Blades1 * Tail Blade1 * Manual