Basically copy coupon, view price history or create e-mail price alert. Do you want to know what the best price is?
Support Color 16.7M 72% NTSC, Resolution 1920*1080P@60Hz, Model DQ3-13.3C, Screen 13.3 Inch, Brightness 400cd/m², Panel Type IPS, Speaker Built-in, Widescreen Yes, Touch Screen Support, Contrast Ratio 1000: 1
Aliexpress
I could not find it 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. 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): BG087f85, AFfbG10, BGPMDS, BGBFAFF2019, BGCITYADS2019, Email5, bGhOnEy10
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for WEICHENSI DQ3-13.3C 13.3 Inch 1080P Monitor.
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)).