Banggood GA-450 Portable Short Wave Radio Active Loop Antenna 3 to 30MHz & MW. Small 20cm rotating stainless steel receiving ring. Rechargeable 18350 lithium battery. Buy here.https://www.banggood.com/GA-450-GA450...
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Features:
Tuning Ring made of stainless steel and is portable.
Equipped with 18350 lithium battery.
Built-in type-c charging port.

Specifications:
Frequency range: SW 2.3-30MHz
Impedance: 50 ohm
Ring diameter: 20cm
Control box: 10.5*6.5*2.6cm
Charging port: type-c

Package Included:
1 x Receiving ring
1 x Antenna box
1 x Built-in 18350 lithium battery
2 x Feeder cables (BNC-3.5 and BNC-BNC)