Duplex Hotspot How it Works BUT Do You Need One?

Duplex hotspots VS simplex explained, how they work and what's inside them.
In Australia buy a fully built and configured duplex hotspot here:
https://www.facebook.com/373032083401813/posts/427378484633839/
Duplex modem board here:
https://store.vkdirect.com.au/shop/modem-board-duplex/
Duplex hotspot kit here: https://store.vkdirect.com.au/shop/duplex-hotspot-kit/

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