$20.89 – 1600X 8LED 2MP USB Zoom Digital Microscope Hand Held Biological Camera.
According to my DB the lowest price is $20.89 for 1600X 8LED 2MP USB Zoom Digital Microscope (in Banggood). You can create price alert here, copy coupons and view price history. Best price?
Latest price update (UTC time):
Banggood ($20.89)
Banggood warehouse is located in China. Good or bad price? This price is higher than average price ($9.25) for this item. There is one great coupon!
Link: Banggood product page
Price without coupon: $21.99
1. ($20.89): BGMAI666
apply code in your basket (cart) after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BG33083d, BGPLPL888, BG20236Tool, BGTOOS729
(there’s a little possibility that old coupon will work)
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for 1600X 8LED 2MP USB Zoom Digital Microscope is here. The lowest price was: $8.88.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).