Real-Time Location Tracking:  Stay on track, both near and far! With real-time location tracking, powered by Sprints 4G LTE Network connectivity, you can keep an eye on loved ones and the things that matter to you. *Tracker works with the Safe & Found service and requires a monthly service fee. Geofencing & Notifications: Tracker offers geofencing and customized alerts, so you can set safety zones, and have location notifications delivered to your smartphone, tablet, or browser. Or use audio alerts so you never lose track when its within hearing distance. Dependable Battery & Durability.  Stay connected with up to 3-10 days of battery on this low-maintenance companion. Tracker is also dust and water resistant (IP67), so it's able to handle life as it happens. Keep Your Valuables Safe:  The embedded light sensor detects and alerts you if someone peeks into your luggage or bag. Android & iOS Support:  Tracker and the Safe & Found app, are compatible with Android and iOS so you can use it anytime, anywhere.