Just check coupons out (with price alert and history). Do you want to know what the best price is?
CPU: ARM Cortex-A53, GPU: Mali-450, 2GB RAM, 16GB ROM, Package Contents: 1x TV Box, 1x IR Remote Control, 1x HDMI Cable, 1x English User Manual
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. We have found one coupon for this product!
Link: Banggood product page
1. ($35.42): 13f142
you should apply the coupon in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): 502C6B, f35809, elec, BGBFAFF2019, BGCITYADS2019, bGhOnEy10, BG92f230
(probably won’t work, but you can try them out)
Price history and price alert
Price history (for all/most countries) for Mecool M8S PRO W 2/16GB TV Box is here.
Price records source(s): Gearbest, 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)).