Franklydude Iwould guess the front panel comes off, exposing the mounting plate, then you have to figure out how to use two screws to fix to the wall or the plastic mounting box set into the wall, which is tricky as most boxes I have seen doen't have a obvious screw hole, or if they do, it's very flimsy. I have used epoxy resin type products to build up material on the left and right of the plastic box set in the wall, but t's a hassle. A better option I think is to cut out the round plastic "EU" style wall box and use a UK style square box. they are usually metal, unless designed for use with drywall, plaster board. They come in at least 3 different depths, but for a smart switch etc you need a deep one

Franklydude Thereceiver shown on the photos of the assembled unit does have a 2A Brushed ESC built into the receiver board. The receiver is listed on Banggood web site:- 2_4G-4CH-Micro-Low-Voltage-DSM2-DSMX-Compatible-Receiver-Built-in-Brushed-ESC

Franklydude Henry, I suggest you use a Hobbyking Supermicro "brick I would suggest with 2 linear servo and DC brush motor ESC built in. like MD-RX62HOr you could use a similar brick receiver like used for WLtoys F949 which is similar but with linear servos. It's cheaper than the Supermicro Rx, but uses WLtoys protocol "FlySky" Turnigy, rather than DSM2If you want to go lighter, use for example a deltang receiver with ESC on board and 1.5gm servos or coil-magnet actuators, you can find on the web.