Just check coupons out (with price alert and history). You probably want to know what is the best price?
750 ANSI Lumens Smart Beamer Android 4.4 Bluetooth 4.4 with Speaker HDMI USB Support 1080P LED TV
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):
Price history and price alert
Here is price history (for all/most countries) for JmGO E8 HD Projector.
Price records source(s): Gearbest
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)).