Aliexpress
Click here… to search for TY9 1080P Mini USB Camera on Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. One coupon is available. Cool!
Link: Banggood product page
Coupon (21.01 USD): BG589b2e
(CouponsFromChina.com tip: this code has to be applied in your 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): BGTYSP269, BGSPHOME60, BGTYST269, 00c906, BG00c906
(probably won’t work, but you can try them out)
Price history and price alert
Here is price history (for all/most countries) for TY9 1080P Mini USB Camera.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).