Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (42.29 USD): BGAFF10OFF
Coupon (42.29 USD): BGTT10
Coupon (42.29 USD): bgshOOp10
(CouponsFromChina.com tip: apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
Old coupons (from the oldest to the newest): BGBS12, BGQCBS, AFfbG10, BGVDay10%off, EARSP11, BGBWBS122, bGhOnEy10, BGdragonBoat, BGSS10%SW, BG597266, BGe8f258, BG522a7e
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Price history (for all/most countries) for BlitzWolf BW-BS12 Stabilizer Bluetooth Tripod is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).