Features1. Practical Lost Keys Tracker: ideal for locating lots of items, such as keys, wallets, glasses, pets, dogs, cats, television remote controls, luggage and other things that need urgent.2. Compact for Carrying: this key locator device measures about 1.18 inch, easy to carry and store, helpful in function.3. Simple one-tap setup instantly connects with your iPhone or iPads. Play a sound on the built-in speaker to help find your things, or just ask Siri for help.4. Anti-Loss Alert: in connection state, when the locator device exceeds the set Bluetooth range, the phone and the locator device will alarm at the same time. 5. Ideal Gift: when you're scrambling to find your things, this key finders set is the ideal thing you need. No matter use it yourself or send it to your aging parents or forgetful friends, it will definitely make them delightful.SpecificationMaterial: ABSColor: WhiteSize: 3 x 3 cmWeight: 9 gBattery: CR2032Bluetooth version: 4.0Using system: Ios AndroidsWireless distance: 10~50 metersPackage Include:1 Tracker Device(Not Include Silicone Cover)