Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. There is no active coupon in my database right now (for Banggood).
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): 77f0f0, 502C6B, Hardware, TTxBG10, BGlk10, BG2646, BG3088, AFfbG10, BGBFAFF2019, BGCITYADS2019, BG5258, 13f142, BG5784, BG4860, BG4986, BG7668, BG7960, bGhOnEy10, BG8883, BGSS10%SW, bgshOOp10, BGHWDEALS, BgoFErTaSchInA10, BgcLuBofErtA10, BGCuponation10, BGHONEY2110, BANGGOODSD, 6GSGIT, ADMITAD2212, 2022ACTIESNL, Terence, Tabby20, 2203ActiesNL, BG1efeb0, 8Couponsde, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BGFAUCET8, BGJUNEGSG9, BG8ReviTrage
(probably won’t work, but you can try them out)
Price history and price alert
Do you need price history chart (for all/most countries) for APP Intelligent Password Lock? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).