Main chip: Dual-core Cortex A7 up to 1.5GHz, Support picture format: GIF/JPEG/BMP/TIF/JPG/TIFF, Interface: 1 male HDMI-compatible, DC: 1 Micro Mini USB port, Operating system: Support Android OS 4.0/IOS 6.0/Mac or higher.
Basically copy coupon, view price history or create e-mail price alert. What is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. I found coupon for you. Check this out.
Link: Banggood product page
1. ($61.09): BG589b2e
this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGProj, BGSaleFeb8
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Do you need price history chart (for all/most countries) for Mirascreen G54 2.4G/5G 4K 60Hz WiFi TV Receiver Display Dongle? There we go. The lowest price was: $58.49.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).