The Wallet Finder Slim Tracker Only 1.5mm Thick, has a 5-Year Battery Life - Never Needs Charging. You can track your wallet, backpack, luggage, and more. Works with Apple Find My iOS Only (Android Not Supported). The 100dB alarm is very lout so that it can be heard from a distance and even when covered or buried in bag. Water-resistant (IP68 rated), Up to 250 ft / 76 m Bluetooth range. Includes a Left behind Alert - Don't lose your belongings with instant alerts via the Find My app. You can also share the location to let others know the location of your items too. The tracking comes in an elegant gift box. Battery Type - Lithium, Battery Capacity - 155mha, Battery Size - 1x1