Capitalizing on the capability of our deft crew, we are keenly engaged in presenting an inclusive variety of gsm rubber duck 9dbi antenna at very best price & quality. Specification frequency range -mhz 800mhz-960mhz,1880mhz-1930mhz vswr ≤2.0 gain-dbi 9 polarization vertical impedance -ω 50 max. Power-w