Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. I’m not sure about the price, coz I have only 1 record(s) in my database. Only one coupon available!
Link: Banggood product page
Coupon (13.95 USD): BANGGOODSD
(CouponsFromChina.com tip: put item in your cart and apply coupon code there 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: 6.99 USD.
You can set price alert (for Banggood).