Help me with Marketing -- 2

Greetings'm interested in making a proposal to offer the service of GPS tracker 103A models. 103 B and 102 .The first vehicles and equipment are for the last monitorial is for people like children and the elderly. My intention is to offer Mobil phone company T-Mobile the opportunity to provide the monitoring service through the platform of the company I represent is the gps that supplies me. With this GPS you can find vehicles are stolen you can tell people where they are and also let me know your supply losses and talked. Any ideas to help me provide monitoring people is welcome.