Wiring a simple RF relay switch

I use these cheap RF switches a lot for home automation, garden lights, lamps etc. so I thought I would make a quick how to video. They can be purchased from banggood here:

https://www.banggood.com/3Pcs-Geekcreit-DC-12V-10A-Relay-1CH-Channel-Wireless-RF-Remote-Control-Switch-p-1188168.html?p=KF2715792233201409DJ