$20.99 – 2 in 1 Aviation Band to Shortwave Frequency Converter with High Impedance Amplifier 118MHz-138MHz Input Range Long Battery Life USB-C Charging Ideal for Radio Listening and Travel – 100M.
Right now the best price with coupon code for 2 in 1 Aviation Band to Shortwave Frequency Converter is $20.99 (in Banggood). Price history, coupons and price alert are available on this page. What is best price?
Latest price update (UTC time):
Banggood ($20.99)
Banggood warehouse is located in China. I’m afraid that there’s no working coupon in Banggood. But wait a sec… Is it a good price? I have never seen better price than the current one in CouponsFromChina database, so it’s the best!
Link: Banggood product page
Price: $20.99
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGMAI666
(these codes were not working in latest coupon update, but you can check them out anyway)
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.
Price history and price alert
Price history (for all/most countries) for 2 in 1 Aviation Band to Shortwave Frequency Converter is here. The lowest price was: $20.99.
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)).