Featuresr gps tracker children seniors pet vehicle luggager sos call automatic dialingr intelligent fence automatic alarmr supported two way voice communicationr historical router ip54 waterproof levelr one mini sim cardr gps global positioning satellite lbs base station locationr 450mah normal use for 2 3 days longest standby 10 daysr out of range app automatically alertr support computer and iosandroid android 23 and above ios 40 and above