... Fleet management etcProtect wealth etcManage personnelMain features of anti-theft GPS tracker: 1. Real-time Positioning & Tracking2. Over ... ports use to ExtendOutput I/O1 port (Control car engine)Microphone3.5mm Single trackearphone3.5mmCurrentStandby Current:16mAworking ... time is about 3.5 hours)Accessoriesdevice, Connecting cable ,GPS antenna ,GSM antenna, Engine controller, SOS button, ...