Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. Sorry, but there’s no price history in my database. There is one coupon available! Pretty cool, huh?
Link: Banggood product page
Coupon (21.59 USD): 12blitzw
(CouponsFromChina.com tip: coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Price history and price alert
It doesn’t make sense to generate price history chart, because there is one price record which is: 19.99 USD.
You can set price alert (for Banggood).