Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. There is one coupon right now! Check this out.
Link: Banggood product page
Coupon (36.12 USD): MVC8SPRING
(CouponsFromChina.com tip: apply code in your basket (cart) after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BgcLuBofErtA10, BG15SH12, BGSTHO15, BGHONEY2110, BGSHOM15, 13f142, BGSHE15, BG73b9b5, BGaf12cd, BANGGOODSD, BGCCARG, BG85d5c6, BG1efeb0
(probably won’t work, but you can try them out)
Price history and price alert
Here is price history (for all/most countries) for Nextool Safety Survival Stick Camera Sound Arc Flashlight.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).