Walksnail Avatar HD Goggles X OLED 5.8Ghz Digital 1920*1080 FOV 50 Degree HDMⅠ Built-in Gyro for FPV RC Drone.
You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
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.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in Europe 
. Too bad there’s no coupon right now in Banggood. I don’t really know if this price is reasonable, coz there’s no price history in my DB.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGCAPITALOS8, BG8FORMULAMX, BGBFDAY8, BG156a24, BGz8k64hzj, BG9f7835, BGHONEYSP, BGd4177f, BG24PL17JUL2, BG7fc5bc, BG88096c, BGALL8
(there’s a little possibility that old coupon will work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Walksnail Avatar HD Goggles X OLED 5.8Ghz ($515.99)
Price history and price alert
It doesn’t make sense to generate price history chart, because there is one price record which is: $519.99.
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)).