Opened and used a few times. Stored in a non-smoking, pet-free environment. [Product Description] This is a loop antenna made by Tecsun, which is very popular on BCL radios. It is a loop antenna that dramatically improves the reception performance of medium wave (AM) radios. No power supply is required. Tuning can be adjusted. By connecting it to the external antenna terminal of the radio with a 3.5mm plug, the sensitivity becomes very good. Even radios without an external antenna terminal will have improved sensitivity by placing the antenna nearby. Antenna Radio Brand: TECSUN Color: Silver, Black, Red Manufacturer: Tecsun