Basically copy coupon, view price history or create e-mail price alert. You probably want to know what is the best price?
Magnification 40x, Color Black, Eyepiece 18mm, Net weight 290g, Lens All-optical glass lens, Size 150x 50mm, Objective lens 55mm, Coating FMC broadband green film, Prism material BAK4, Prism field of view 1500m/9500m, Focusing mode Focusing wheel
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. Only one coupon available!
Link: Banggood product page
1. ($24.96): 00c906
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGIPR30, AFfbG10, BGcamp15, BGBFAFF2019, BGCITYADS2019, 13f142, BGVDay10%off, BGCP17, BG32504, BGIPREEB, BGAFF10OFF, bGhOnEy10, 21322a, BGdragonBoat, BGCAMP01, bgshOOp10, BgoFErTaSchInA10, BgcLuBofErtA10, BGZPBC15, BGTY704CP, BGCuponation10, BGHONEY2110, BG10OFFAFF, BGwhielabel, BG10OFFAFF1, BGce896a, BG4d9120, BGAlerabatod
(there’s a little possibility that old coupon will work)
Price history and price alert
Price history (for all/most countries) for IPRee 40×60 HD 2000T Monocular is here.
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)).