Just check coupons out (with price alert and history). What is best price?
[Banggood Only] Wanbo T2R Max 1080P Android Smart Projector Retro Style Auto Up-down Keystone Correction Side Projection Electric 4-point 350 ANSI Lumens 1+16GB Mini Portable Movie Home Theater Outdoor Movie – EU Plug
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. Too bad there’s no coupon right now in Banggood.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGAProjector, BGXTR22, BGWBTR22, BGALIBUYJ143, BGEBRSATR, BGZCJ143, BGProj, BGNiuxTechWB, BGZJ133, BG1PAZ0, BG387733, BGSKYA, BG589b2e
(you can check these old coupons out, but these probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Wanbo T2R 1080P Android Projector [EU] ($-3)
Price history and price alert
Check out price history chart (for all/most countries) for Wanbo T2R Max 1080P Android Projector.
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)).