CPU: Amlogic S905X, WIFI: 802.11 b/g, Memory: 1G RAM / 8G ROM, GPU: Quad core ARM Cortex-A53 CPU and Penta-core ARM Mali-450 GPU, Bluetooth: Bluetooth 4.0, Resolution: optical 1280×720, 2200 Lumens.
Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
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 price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($130.89): BGPROBuscape
2. ($138.59): BGAProjector
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): ViviC80UP, e2bcea, TECH8%, PICODICOM, BG3CSUM, BGPAYPALSS, aff7off, BGaDmITAd, bgchinafest, BGBFAFF2019, BGCITYADS2019, 7bcdf9, bGpAnDacHeCk, Email5, bGhOnEy10, BGdragonBoat, BGAFF7OFF, bgshOOp10, BgoFErTaSchInA10, BGAFF10OFF, BGProjectors
(these coupons are old, so probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for ViviBright C80UP 1/8GB Projector. The lowest price was: $110.49.
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)).