1, OBD II standard interface, inbuilt GPS&GSM antenna 2, Sirf 4 and quad band 850/900/1800/1900Mhz 3, Real time location, ACC detection 4, Free track by SMS/web/android app 5, Over speed alarm, geo-fence alarm 6, Remote voice monitor 7, Back up battery, power cut off alarm Dimension 72x48x24mm NR100 Net Weight 100g