I have just checked coupons. The lowest price I could get is 46.99 USD for Wavlink AC600 Wireless (in Banggood). You can create price alert here, copy coupons and view price history. Best price?
Latest price update (UTC time):
Banggood (46.99 USD)
Banggood warehouse is located in China. I don’t think there is an active coupon right now – at least in my database. What about the price? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal 42.14 USD)
Link: Banggood product page
Price: 46.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BG3d79ff, BGGines, BG3f67c8, BG26e02d, BG3ee8cb, BGPL26MAJA0, BGHU2305, BGM1TOOLS88, BGe3bf28, BG20236Tool, BGTOOS729, BG8FORMULAMX
(these codes were not working in latest coupon update, but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Wavlink AC600 Wireless Waterproof WIFI Repeater [EU] (46.99 USD)
Aliexpress
Click here… to search for Wavlink AC600 Wireless Waterproof WIFI Repeater on Aliexpress
Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for Wavlink AC600 Wireless Waterproof WIFI Repeater? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).