CASE SiteWatch™ Telematics allows you to usually know exactly where each device is, Performing status and when servicing or service is required. Use actual time and historical facts for actionable insights to proactively handle your fleet. 这里多说一句，苹果其实强调过，一些app在后台不老实，是会被强杀的。其实很多人遇到的杀后台严重问题，很多时候都是因为在使用流氓app啊！还有更重要的信息... https://eduardoxdcon.bloggip.com/35915790/top-guidelines-of-can-someone-take-my-case-study