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ok
As is typical for Banggood, NO DOCUMENTATION of any kind came with this. They then hide behind "go find it on the web". If you sell a product, you should supply complete documentation
It's okay
Product arrived in less than 15 days, fast enough. But was not packed carefully, dangling in the box. Of course no info and no link to some instructions. And nothing lit when try to start it. Opening the case I noticed that a thin wire is not solder properly. In advertising pictures look nice, in real life is not so clean worked, especially at the board connection wires. I reworked some cold solder wires and it come to life. Work ok now and do his job, but I still try to understand all the programming features. Joystick is very sensitive and is hard to make movements with precision. I must try few times to set parameters that I want. Some software mods must be made to make it more user friendly. Also no battery charging LED indicator. At least mine had none or is not operational. But overall it do his job and is at same price as my homemade version(but quality is a little less). It worth buying and is a good accessory for a little shack. If someone have some info about this version operation instructions please sent it to me. Thank you.