I have checked all old coupons and price is $46.99 for R18 Binocular Infrared Night-Vision Device 5X (in Banggood). Just check coupons out (with price alert and history). You probably want to know what is the best price?
R18 Binocular Infrared Night-Visions Device 5X Zoom HD Day Night Dual Use 7 Level Infrared Light IP54 Waterproof 300M Full Dark Viewing Distance Outdoor Hunting Nightvision Binocular
Latest price update (UTC time):
Banggood ($46.99)
Banggood warehouse is located in China. I’m afraid that there’s no working coupon in Banggood. Is it expensive? From what I can see this price is higher than average price ($45.99).
Link: Banggood product page
Price: $46.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG8FORMULAMX
(these codes were not working in latest coupon update, but you can check them out anyway)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for R18 Binocular Infrared Night-Vision Device 5X? There we go.
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)).