900C gps tracker Specifications : Track on Web or Mobile Phone Listen-in or Two-way Audio (Use the SMS to set the communication mode) Internal 2Mb Flash Memory for Logging when the device in the gprs blind area FEATURES: Good for tracking, fleet management and security Track by SMS/GPRS Band: 900MHz/1800MHz and 850MHz/1900MHz User can link to the service center GPS tracking website through the ...