1.Tracking GPS Tracker Logger 2.4 Frequency, Portable 3.Support Two-way Talking 4.SOS ,Cell Phone 5.SMS Micro GPS CRT109 Single Location And Continuous Tracking GPS Tracker Logger Features:Works WordwideQuad-Band(850MHz,900MHz,1800MHz,1900MHz)Real-Time TrackingMonitioring Function For Remote ListeningBuilt-in Advance GPS ReceiverSingle location And Continuous TrackingTwo-way CallingSpecification ...