WE SELL GPS TRACKING UNITS FEATURES + Locate on Demand + trakSMS® (Locate, Enable/Disable Vehicles Using Mobile Phone) + Starter Enable/Disable + Programmable Geo-Fences + Device Commands Event Scheduler + Seven Day No-Movement Alert + Sub-Account Management + Create New Accounts + Multiple-User Login + Easy Device Transfer + Multiple Search Criteria Options + Multiple Levels of User Security + Trak Transfer + Quick Map-It Views + Outstanding Alert Notification + Last Known Location Displayed + Unlimited History Retention + Quick View 30-Day History + Microsoft Virtual Earth Mapping + U.S., Mexico and Canada Mapping + Road, Aerial and Bird?s eye Mapping Views + OBD II Harness (Optional) + Warning Buzzer (Optional) + Battery Back-up (Optional) + Low Battery Voltage Notification (With Battery Back-up) + Display Vehicle Speed