Here is a drone that you can fly anywhere safely with peace of mind. The Droneball is a collision tolerant drone with 6-axis gyro stabilization that can be flown in tight spaces and maneuvered using a radio control system. Even when the Droneball collides with an obstacle, it stays in the air.
This flying machine has its own cage, weighing 350g in total. It is powered by brushless motors running on a 1300 mAh battery. The Droneball has a max speed of 40mph. The developers are planning to introduce 4k camera, night vision camera, and other modules for it in the future.