2.4 / 5.8GHz / 2 dBi @ 2.4GHz, 3 dBi at 5Ghz (RP-SMA) rubber duck WiFi Antenna 2.4 / 5.8GHz; rubber duck; RP-SMA gain: 2 dBi @ 2.4GHz, 3 dBi at 5Ghz; impedance: 50 Ohms frequency/bandwidth: 83Mhz; center-frequency: 2.4 - 2.5 GHz connector: RP-SMA; dimensions: 5 inch