Qingsong GT Model QS5013 2.5Channel 2.4GHz Infrared Semi-micro Gyroscope RC Helicopter Blue Semi-micro size and light weight, easy to control. High tenacity propeller, high efficiency, driving motor and surge power Flexibly control it by radio control function. It is suitable for both indoor and outdoor flying. Charged by four 1.5V AA batteries Its simple, sturdy construction is perfect for first-time pilots. Good capability of anti-interference while remote controlling and feel fit of the transmitter Built in Gyroscope for extreme stability and precision. With infrared function, it is advance and high-tech Suitable for people above 14 years old