Can be purchased at Amazon: https://www.amazon.com/SIMREX-Quadcopter-Foldable-Altitude-Headless/dp/B07WJGN6J3/ref=sr_1_2?crid=313DQKM1M59XK&dchild=1&keywords=simrex+x300c+mini+drone&qid=1594673320&sprefix=simrex%2Caps%2C157&sr=8-2
Part 2 shows additional operational options: Flight speed, tilt to maneuver function and clarification of calibration.
Just purchased my second drone: Snaptain SP360 Check it out at this link: https://youtu.be/DujpqK95uIU