Kind reminder: Dear friend, our product comes in two styles: Model A: (Wireless Bluetooth Anti Loss Locator Tracker) Function: Battery: Button Battery CR2032, Application Name: iSearching/Kindelf, Product Size: 34x34x6mm, Model B: (Intelligent Mini GPS Tracker) Function: Bluetooth 4.0, Appearance Size: 10.8 * 9 * 1.5cm, Applicable System: IOS 7.0 or higher, Android 4.4 APP application download: Download the Android system in the application, iOS system and battery: CR2032 lithium button battery in the app store. Please be careful when placing an order Portable Airtags GPS Tracker Smart Finder Key Search GPS Tracker Children Positioning Pet Tracker For Apple Airtag Accessories Description: Material: ABS Battery: Button battery CR2032 APP name: iSearching / Kindelf Product size: 34x34x6mm Battery:200mah 1.Compact and Light Design: Low Energy Consumption Alarm. 2.Support: find Phone Function and Voice Recording Function. 3.Support 4.0 and The effective Range is up to 25m. Specifications: Key Finder with AppThe key finder is connected to the phone via and ISearching .With An anti-lost sleeve to attach keys, wallet, remote, glasses, phones, dog collars or other things that are easy lost. The key finder locator will help you not waste time searching for stuff. One Touch FindThe key finder that makes music helps you find misplaced items quickly; Click the "CALL" on the App to make your key finder ring and find anything quickly. Location Record LocatorApp has real time location map, and will record the last connected location to help you find it back. so you can open the map in the App to speculate approximate location of your missing items. [Compatibility and size:] App.Size: 1.5inX1.5inX0.29in. It supports for iOS and Android phone.Suitable for Wallet, Car, Kids, Pets, Bags, Suitcase or other belongings. Package Included: 1*Tracker 1*protective case 1*User manual