You can get 1080p OLED FPV Goggles for 389.99 USD using coupon code (in Banggood). Price history, coupons and price alert are available on this page. Let’s see what best price is ATM.
Latest coupon code price check (UTC time):
Banggood (389.99 USD)
Banggood warehouse is located in Hong Kong. The question is – is it a good price? The average price for this item is 447.78 USD, so I think it’s a good price! I am tired of searching coupons, but I found one for you…
Link: Banggood product page
Price without coupon: 405.99 USD
Coupon (389.99 USD): BGaad335
(CouponsFromChina.com tip: 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
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
Old coupons (from the oldest to the newest): 8wEbgaInS5, pROMo8cuPoN, BG8RCToy, hoNEYbGdeAlS, BG0fbd0b, Cuponation9, COUPONSDE1wk, BgGoodie9, BGMatt2022, BGToys8, BGGutscheine, TTBLACK5, BG5e35eb, BGfcf1a8, BGd88479
(these codes were not working in latest coupon update, but you can check them out anyway)
Aliexpress
Click here… to search for Fat Shark Dominator Digital HD 1080p OLED FPV Goggles HDO3 on Aliexpress
Here are coupons that you can use.
Price history and price alert
Here is price history (for all/most countries) for Fat Shark Dominator Digital HD 1080p OLED FPV Goggles HDO3.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).