RENTALSTAR GPS

Wireless devices for navigation, communication and tracking, namely, portable vehicle tracking units, that combine GPS and cellular technologies for determining vehicle location information and communicating the vehicle location information, providing communication of signals to the wireless devices to deactivate the vehicle starter, communicating vehicle movement and location information from the wireless devices, communicating alert messages from the wireless devices when vehicle speed exceeds a preset maximum speed, and communicating alert messages from the wireless devices when a vehicle goes outside a preset boundary