GPS gprs module of high Performance, Low Price 1.Chipset:SiRF star ... . 3.Size:20.0*28.0*3.2 mm GPS gprs module with Low Price, High Performance, International Approvals, Prompt Delivery, Small ... .Serial Port: 1).Two full duplex serial communication, TTL interface, with user selectable baud rate (4800,9600,19200,38400,57600)-User ...