The price is so low, even your shadow nodded: $31.99 (Banggood). 50K-500MHz Wideband Active Small Magnetic Loop Antenna LZ1AQ Amplifier HF AM FM VHF UHF SDR Receiver Radio.
Updated: 07-07-2025
Banggood
Warehouse in China.
Link: 50K-500MHz Wideband Active Small Magnetic Loop Antenna LZ1AQ
Price: $31.99
Additional Banggood coupons:
1. First page
2. Second page
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 50K-500MHz Wideband Active Small Magnetic Loop Antenna LZ1AQ is here. The lowest price was: $29.99.
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)).