I have purchased a lot of drones from allied express, banggod, etc... but this one is absolutely excellent. i flew it indoors using obstacle avoidance and it worked perfectly. but the best thing is, it has gps. which means when you fly it outside it will stay in one spot, it has return to home, you can record etc. this is the only drone i i would endorse. of course the shipping was slow, what are you going to do it's coming from china. but it arrived in a great case, undamaged, it has a full screen it has all the different connectors that connect to various cell phones i think it came with four different connectors. you don't have to use a cell phone if you don't want to but you can. extremely happy with this purchase and you will be too. just read the instructions.