Basically copy coupon, view price history or create e-mail price alert. What is best price?
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):
1.2 TEF6686 Full Band FM/MW/Short Wave HF/LW Radio Receiver + 3.2inch LCD +3000MAh Battery + Metal Case + Speaker + Antenna
Banggood
Banggood warehouse is located in China. There is one coupon right now! Check this out.
Link: Banggood product page
1. ($91.99): BGHONEYSP
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG1c4e16, BGTOOS729, BGNEWYEAR8, BGSPRING8OFF
(these coupons are old, so probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for 1.2 TEF6686 Full Band FM/MW/Short Wave HF/LW Radio Receiver.
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)).