Type:Gps Tracker Use:Automotive Function:gps tracking Warranty:1 Years Size:97*14*51mm Network:GSM/GPRS Band:850/900/1800/1900Mhz GPS chip:MT3336 GPS accuracy:5m Work voltage:9-36V Relay:cut oil & circuit remotely GPS Tracking System:Free for tracking one car or need charge for many cars management Extra Function:SOS alarm & Two-way calling External microphone:Voice Listening Show More