You can create price alert here, copy coupons and view price history. Do you want to know what the best price is?
not included), Remote control: IR remote control (powered by 2x AAA battery, Projection mode: front / rear / ceiling, OS: Android 7.0, Main chip: MTK 4-core, Digital zoom: support, Focus: focus manually, Memory: 1GB DDR3 + 8GB eMMC, Keystone: vertical 45 degrees
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. Hmmm… There is no active coupon in Banggood at this moment.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): bgssaff9, aff7off, BGJMGOM6G, BGJMG24, BGJGM601, BGaDmITAd
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Check out price history chart (for all/most countries) for JMGO M6 DLP 1/8GB Projector Global.
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)).