Handled console

Another handled console with everything printed from scratch with as little material as possible :

3.8" LCD screen (http://fr.aliexpress.com/item/32819386291.html, which has a 180° HDMI link)
Raspberry 3B+ and it's alimentation
audio amplifier : (http://fr.aliexpress.com/item/32655768574.html)
2 speakers from an old laptop (http://fr.aliexpress.com/item/4000130830502.html)
2 DC booster (http://fr.aliexpress.com/item/32641240730.html) (1 for the Pi & screen, the other for the amplifier)
1 module battery charger (https://fr.aliexpress.com/item/32897191064.html)
2 18650 batteries (mines are from an old Dyson hoover, https://fr.aliexpress.com/item/4000246648023.html)
1 switch 3 positions (https://fr.aliexpress.com/item/32712692663.html)
1 female connector (https://www.amazon.fr/gp/product/B01N367R2P)
1 male connector (https://www.amazon.fr/gp/product/B01IS5R59W/)
12 8x8x5.5mm silicon switches (https://fr.aliexpress.com/item/32985575587.html)
2 6x6x4.3mm contact switches (http