Rubber antenna, 2.4G type1. Shape Dimension (Unit : mm)2.  Electrical properties    2.1 WiFi Antenna                                                 Table1NO.ItemSpecifications1Frequency (MHz)2400~2500 MHz2V.S.W.R (in BW)≤2.0:13Gain2 dBi4PolarizationVertical5Impedance50 Ω     2.2 Mechanical                                                 Table2NO.ItemSpecification1Cable--2ConnectorSMA or other3Plastic HousingBlack