1, Active gps antena 2, Work for all kinds car and marine environment 3, Waterproof,sun-fadsun-fade resistant, salt resistant Product name: GPS Antenna, Car Antenna, Active gps antennaProduct code: AIG902Specs:20*25mmVoltage:3-5VCurrent:3-5mAFrequency:1575.4.2±1.023MHzV.S.W.R:<1.8:1Gain:20+/-1dBiOutput impedance:50ΩNoise figure:<1.0dBConnector:IPX