Type: RG6 & RG59 coaxial F female connector terminal to 3.5 mm(1/8inch) male mono plug. Nickel plated Brass/Zinc construction stable data signal transmission. Easy to use and play convenieet to carry. Commercial grade F series adapters suitable for coaxial networks. Mainly used on portable radios for antenna adapter new antenna adapter to convert the F type to the 3.5 mm FM antenna input.