I got this keyboard and mouse combo for my family to go with their TechFast PC, after doing a lot of research; this seemed a decent and affordable option. Usually priced closer to $50, there seems to have been a price drop.
Both have been responsive with no lag experienced. The keyboard is fairly quiet to type on and seems well-built. The mouse is overly light and plasticky for my liking, which makes the build quality seem average, but works well and does the job. Would recommend, especially at this price.
Officeworks: https://www.officeworks.com.au/shop/officeworks/p/logitech-w…
Harvey Norman: https://www.harveynorman.com.au/logitech-mk345-wireless-keyb…
Nano receiver and both keyboard & mouse will not connect to an Unifying receiver according to the product page.