Nut Mini 3-Pack Combo Bluetooth Smart Tag Anti-loss GPS Tracker - Android Apple iOS The nutmini is the smallest Bluetooth Smart Tracker on the market Track your Phone, keys, wallet, backpack, or anything you want to fasten it to Recommended for iOS 7 and above and Droid 4.3 and above with Bluetooth 4.0., replaceable battery and Ultra low power Bluetooth technology. With range alert both your Phone and the nutmini will beep to alert you that something has gone out of range. When disconnected the app will Show on the map the last place and time it was connected. Nutmini 3-Pack, Best Value online. Comes w/ 1 Blue 1 Green 1 White