(WARNING: Please make sure your long hair away from it while flying.)Infrared Induction: This aircraft use advanced infrared induction technology, you can control it with your palm, and it can automatically avoid obstacles. It won't hurt you and damage by collisions. Durable Material: This hand controlled flying toy is made of high grade ABS plastic material, collision resistance and durable. Cool LED lights & Rechargeable - Built-in long-life rechargeable battery. Fully charged by USB cable included about 30 mins, use time: about 5-10 minutes. Lightweight and portable design makes it possible to take by kids indoors or outdoors - anywhere they like! Super cool LED light adds more excitement to the chasing game. Perfect Gift: Kids LOVE to play with this amazing flying drone! Packed with a premium box. Best reward and gift for birthday, Christmas, Easter, and Children's Day. Making best gifts and Satisfaction Guarantee is always our first priority. The aircraft can be calabrated when there is always offser during flight. Here's the solutions: 1. Torn off the aircraft. 2. Turn the aircraft 180 degrees, hend down and foot up. 3. After booting, press the power button several times, so that the seven-colour lamp flickers all the time. 4. Turn the aircraft 180 degrees(head up and foot down) and place it on the horizontal plane. 5. The blue light is always on to indicate that the calibration is completed.