Bplus AN2450-9211RS : 2.4/5.8 GHz Rubber duck Antenna, RP-SMA Connector Best for WiFi : 2.4GHz / 5GHz Rubber duck Antenna , RP-SMA Connector Freq.Range : 2400-2483.5 MHz (Bandwidth 83.5MHz) , 5150-5850 MHz (Bandwidth 700MHz) Gain(dBi) : 2dBi (2.4GHz) , 5 dBi (5GHz) V.S.W.R : ? 2 , Max Power : 50W Nominal Impedance : 50ohm Height : 19.5 CM / 8inch Weight (g) 20g , 3/4 oz