Feature:1. RECEIVING FREQUENCY: Mini loop shortwave antenna support receiving at 9.9Khz181mhz frequency, receive directional, and can rotate the antenna to find the best receiving angle2. EASY INSTALLATION: The circular antenna is designed for easy installation and simple operating, ensuring that users can get started quickly without any trouble3. APPLICABLE SCENARIO: Loop antenna with 1030dBuV adjustment function, can open and close at any time, can be used for malachite receivers, TEF6686 receivers, HAM connections, etc.4. COMPACT AND LIGHT: The SW loop antenna is compact and light, easy to carry and store when not in use, and provide great convenience for your life5. LONG LASTING MATERIALS: The ring antenna is made of excellent PCB materials to ensure durability and long service life, providing users with long lasting performanceSpecification:Item Type: Mini Loop Shortwave AntennaFrequency Range: 9.9kHz - 181MHzInterface: SMA male connectorBattery Type: 1 x Rechargeable lithium battery 250mAhSize(LxW): Approx. 122 x 100mm / 4.8 x 3.94in.Package List:1 x Mini Loop Antenna