1) built-in antenna 2) track by sms or gprs 3) real time tracking at intervals 4) resend data from signal dead zone 5) voice monitoring 6) sos alarm 7) low power alarm 8) overspeed alarm 9) geo-fence alarm 10) parking alarm 11) idling alarm 10) tired driving alarm 11) history playback 12) mileage statistics 13) reports statistics 14) remotely update firmware 15) water resistance.
