I'm a complete newbie. My 1st drone will be a Mavic Pro Platinum (or might wait for the new one) I live in China in a 33 floor residential building. I can get to the roof to launch my drone. My question is not regarding rules or China. I just want to know what equipment I need to have best control over the drone in a neighborhood of tall buildings. I would imagine lots of signal reflectance could happen, off of buildings. Is that a concern? Do I need an range extender equipment. The neighborhood is fairly unpopulated, so not such a safety issue as far as hurting anyone. Just lots of cool empty tall buildings. I've never flown a drone before. Complete Newbie.