This 2.2"/57mm long antenna has 2dBi of gain and 50? impedance so it will work fantastically with just about any 850/900/1800/1900/2100 wireless receiver/transmitter such as any Cellular or GSM/GPRS device.
Specifications:
Datasheet
Frequency: 850/900/1800/1900/2100 MHz
Gain: 2 dBi
V.S.W.R.: <=2:1
Polarization: Vertical
Connector: SMA Male Right Angle (Option)
Impedance: 50?
Operation Temperature: -20ºC ~ 60ºC
Storage Temperature: -30ºC ~ 75ºC
Dimensions:
Length: 57mm / 2.2"
Length of Connector: 16.5mm / 0.65"
Weight: 8g
Image of dimensions