... stable,extendible design GPS/GLONASS optional I/O,com ports Bluetooth,WIFI,OBD RS3000 is an intelligent multifuncational GPS vehicle tracking ... reliabel two way communication GSM/GPRS modem, based on existing wireless infrastructure, makes RS3000 possible to deploy the system with rich ... GPS vehicle tracker /OBD tracker/ car tracking system(RS3000), to Bluetooth,WIFI,OBD,RS232