It seems that you asked about the helicopter model. Simply put, helicopters are routes and 3D. The route is flying, and 3D is flying backwards. It's called fancy flying. In fact, it is to use the negative pitch in the straight model to make all kinds of actions that the real machine can't play.

I still recommend Yatuo for the straight plane, but if the money is not enough, I can consider making up for it. It is suitable for me to have a rudder and an electromechanical adjustable motor. This price is not certain. At the beginning, I spent more money than 4K to buy a set of Alto 450 with spare parts, and others also spent 2K to repair it.

I strongly recommend the 5i model, and there is nothing you can't learn by soaking in jars.

4 ESKY's things, to be honest, show them to the children. Its so-called 6-way machine is nonsense, and the configuration is so low that old players will know at a glance that this thing is ok to hover and practice. If it really wants to fly, let alone 3D. No one dares to fly it. It's not safe. If something goes wrong, it will be the guillotine, not for fun. After all, although things are broken, the speed is still there. ESKY can get two models of LAMA, a V3 and a V4. It's good and cheap for novices to practice hovering and route orientation. As for the remote control, forget it, it's not that multifunctional. It's all the primary control, but I remember that it can really charge the battery. The charging port is an ordinary 5V round plug, an ordinary repeater and the like, as long as it can be plugged in. However, it is still not recommended to charge according to the control. It is said that the control is not good. After using it for a while, I was told that I didn't need it, so I changed the charger.