*Longer Use time-The 2 batteries supplied extend the flight time by up to 14 minutes,and When the rotor blades collide or emergencies?the motor will automatic shutdown to protect the rotor from damage, so that extend the service life of the remote control helicopter. *Anti-Collision Strong-The whole body of the helicopter is high quality alloy materials, strong anti-Collision and can still keep good performance after many times crashes. *Two-Speed Mode-It has high speed and low speed for your choice which make your flight easier. It is suitable for indoor flying or outdoor flying without wind. *Altitude Hold-The helicopter will automatically hover at a certain height after taking off and the latest gyroscope technology can provide more flight stability. *3.5 Channels-Up/Down, Left/Right, Forward/Backward and adopt 2.4GHz technology achieve No-interference connection,which make you fly more than two helicopters at once.