Full-band signal capture:Covering the ultra-wide frequency band of 10kHz-180MHz, the antenna direction can be rotated to adjust, easily capture the best receiving angle, and enhance signal stability. Ready-to-use and super convenient:No complex debugging design, quick installation of the ring structure, and easy operation for novices. Palm-sized and ultra-portable:110mm mini size (about the size of a smartphone), , foldable and storage without taking up space, no burden for outdoor use. quality:Adopting high-toughness composite material frame + anti- coating process, and wear-, suitable for both indoor and outdoor environments. Multi-device intelligent adaptation:Perfectly compatible with for Malachite SDR receivers, TEF6686 chip radios, amateur radio equipment, etc., SMA male plug and play. Receiving frequency band: 10kHz-180MHz Interface type: Standard SMA male connector Colour:Red Material:ABS Package Contents: 1 x Mini Loop Antenna Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.