The package is a DIY kit. It needs to be finished installing by yourself. This Soldering Practice Kit is very simple,It is very suitable for children
Learn to Solder Kits Soldering Practice Kit Learning Electronics Training Board
Processes, Free Full-Text
HOW TO SOLDER! (Beginner's Guide)
Kings® RF Catalog Datasheet by Winchester Interconnect
Quad Wont Arm (more info in comments) : r/fpv
The package is a DIY kit. It needs to be finished installing by yourself. This Soldering Practice Kit is very simple,It is very suitable for children
Learn to Solder Kits Soldering Practice Kit Learning Electronics Training Board
Basic Soldering Techniques
How to Solder
han twist .40 arf - Hangar 9