... 3.Size:20.0*28.0*3.2 mm GPS gprs module with Low Price, High Performance, ... International Approvals, Prompt Delivery, Small Orders Accepted.1.Physical Characteristics: 1) Active Size: 20.0*28 ... .0*3.2(mm) 2) Weight: less than 3g 2.Chipset ... Two full duplex serial communication, TTL interface, with user selectable baud rate (4800,9600,19200, ...