You can get HAYEAR 16MP 1080P for 100.99 USD using coupon code (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
Latest coupon and price update (UTC):
Banggood (100.99 USD)
Banggood warehouse is located in China. I can’t find any active coupons for this product in Banggood. Low/high price? From what I can see this price is higher than average price (97.99 USD).
Link: Banggood product page
Price: 100.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BG20236Tool, BGTOOS729
(probably won’t work, but you can try them out)
Aliexpress
Click here… to search for HAYEAR 16MP 1080P 60FPS USB C Industry Microscope Camera on Aliexpress
Here are coupons that you can use.
Price history and price alert
Here is price history (for all/most countries) for HAYEAR 16MP 1080P 60FPS USB C Industry Microscope Camera.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).