This 4" / 100mm long flexible uFL 2.4GHz antenna has approx 4DBi gain and a 50? impedance so it will work fantastically with just about any 2.4-2.5GHz wireless receiver/transmitter such as the Adafruit CC3000s!
 Antenna comes with a uFL (a.k.a u.FL / IPX / IPEX) connector, so no more need for additional adapters to get your IoT cloud flying high!
 TECHNICAL DETAILS
 
 Operating Range: 2400~2500MHz / 4900~5900MHz
 Efficiency: 90%
 Bandwidth (VSWR: 2.0 max.) 140 MHz / SWR < 2.0
 Polarization: Linear
 Radiation: Omni directional
 Antenna Gain: 4DBi
 Impedance: 50 ohm
 Cable: 100mm / 4" long
 Antenna: 40mm x 8mm / 1.6" x 0.3"
 Weight: 0.7g