... communicationStandard tracking in real time through: unit PIN, location, speed, time, direction, alarm statusAutomatic time reports, or through commands ... optional )No installtion charge GSM and GPS antenna are embedded in the unitReal time track model Level IP56 waterproof ... of car bodyBuilt in rechargeable polymer Li battery (Battery Life 7-15 days) 4 kind location way !Use latitude and longtitude to ...