1/4 Wave Monopole Antenna. 21mm long. Rugged Flexible Plastic Finish. VSWR less or equal 2.0. Omni-Directional Design. 50 Ω Impedance. SMA-Plug Fixing. Nominal Gain 0dBi. Available as Straight or Right Angle. Omni-Directional Design, Format anteny = Trzpi