Smartly test the height and distance to automatically land off or escape.
Best Gift:UFO flying ball is loved by children all over the world like the elf dancing in the air full of fun the best companionship gift for parents and children can be used as a toy gift for 3-15 years old kids boys girls. US 2 Pack UFO Drone Infrared Sensor Induction Aircraft Quadcopter Flying Toy Kid USA Seller Ship Fast! Easy to control by kids. Cool LED lights & Rechargeable:Built-in long-life rechargeable battery.