Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
1x English User manual, No head tracker, 1x Carry Case, Package Contents: 1x Goggles, 1x Filtered Adapter, 2x Antenna, 2x Foam (Thin and Thick), 1x AV cable
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in Europe 
. There are no coupons for this product 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: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): 502C6B, esAomway, snappyde09, Parts8, BGBCFPV, 59c3bf, Messenger Only, BGBCBG10, BGSPRING8OFF, BGHONEYSP
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Aomway Commander V1 RC Goggles No Head Tracker ($-3)
Price history and price alert
It doesn’t make sense to generate price history chart, because there is one price record which is: $169.99.
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)).