I read everything in the instructions but it's takes a while to get used to it... It keeps bump into things even when it's on avoidance mode.. The remote is super sensitive so even if you push left just a tiny bit it goes far left, it's too fast even on the slow mode to be able to control it, it keeps drops or stuck somewhere after 10 second of playing with it.. I have a hard time control it, definitely not for beginners... And that hand sensor mode is absolutely useless... It doesn't follow your hand as in the video when they throw it to each other, it goes where it wants and bumbs into things... It's just a mess.. :(