A Smart-home setup is all the rage these days. I say this because i have two friends who have done-up their new homes with Smart-home features. It is not exaggerating to say that a Smart-home is synonymous with Broadlink (a Chinese Tech company), at least in this part of the world, because their products are the most accessible and popularized ones. There are many sources for Broadlink products, but Taobao is likely the cheapest one for obvious reasons.
I bought the RM Mini 3 during the Singles (11.11) day promotion, and it was only 60 Yuan (S$12.50). Including shipping, it was probably under S$15 overall. I recently also got hold of the SP3 plug during the CNY promotion, and it was only 39 Yuan (S$8.15). I noticed that the official Broadlink store on Taobao often run out of stock during the promotional period. Either that, or, for some reason, they would withdraw items from sale on their store. Thankfully, other stores on Taobao would match their pricing, and that was how i managed to get the SP3.
Broadlink tries hard to make their App look polished, but they’re not there yet. That said, it is more than decent. Setting up devices is pretty easy. I was able to just hit the “configure” button on the App, and the SP3 plug was discovered and added as a device.