First, I bought a DJI mini 4 Pro. Then I thought about damaging it while learning to fly and bought a Holy Stone HS600. The HS600 is like a tank. As to the 107 licenses, you have to register any drone over 249 grams. That is .55 lbs. The mini 4 Pro weighs 249 grams. The HS600 is over 500 grams. If I buy the longer lasting battery for the mini 4 Pro it will weigh more than 249 grams. In addition, all the newer drones have the Remote I.D. (R.I.D.) technology already built into them. This broadcasts your drone information so that the FAA can identify it. As of September 2023, all drones 250 grams or more must have this R.I.D. either built in or a module attached to for compliance. So, I figured go ahead and get the license.