Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Europe 
. There are no active coupons for this product, but the price is pretty low isn’t it? I’m not sure about the price, coz I have only 1 record(s) in my database.
Link: Banggood product page
Price: -3 USD
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
Old coupons (from the oldest to the newest): BGGines, BGTACC18, BG589b2e, BGHTT15, BG20236Tool
(there’s a little possibility that old coupon will work)
Price history and price alert
Well, you won’t see price history chart, coz we have only 1 database record for this item (and price was 19.99 USD).
You can set price alert (for Banggood).