Specification: Item Type: BT Item Finder_x000D_Material: Plastic_x000D_Support for IOS and for Android Systems: For IOS 12.5.5 Or Higher, for Android Version Requires 8.0 Or Higher, Phone Must Support 5.0 Or Higher BT Version_x000D_BT: 5.0, Bluetooth Low Power (BLE) Support_x000D_Two Way Alarm: Support_x000D_Frequency Range: 2.402-2.480ghz_x000D_Operating Power: -94dbm_x000D_Operating Temperature: 0-50_x000D_Operating Voltage: 2.7-3.2V_x000D_Stopping Current: Less Than 10uA_x000D_Battery: 1 x 240mAh CR2032 (Included) Features: 1[Easy To Find Items] You can put the Bluetooth item finder on your frequently misplaced items, such as keys, purse, backpack, children, pets, to prevent loss and save your time to find things. One app can add multiple finders to manage your items easily. 2[Multi Functional] Bluetooth item finder can guard your phone and valuables with rich features, such as check the last lost location on the map, phone alert when lost, remote self timer function, left item alert, find your phone, etc. 3[Two Way Alarm] When the Bluetooth item locator is disconnected from your cell phone, the mobile app will remind you, and the locator will also sound an alarm, as long as the product is out of range, your cell phone and this anti loss device will sound a beep to remind you. 4[Positioning Function] The smart key finder has a positioning function, which is convenient for you to check the last position of the object on your cell phone to help you find it. You can open the map in the app and determine the approximate location of the lost object. 5[Energy Saving] This key finder has a built in replaceable battery, which is energy saving. With the app settings, you can easily keep your keys, handbag and other items safe. It can also be placed on children or pets to ensure their safety. 6[Compatible Devices] The item tracking device has wide compatibility with for iPhone 13 12 11 X 87 series, for Android system, for Android 8.0 or higher, the phone must support 5.0 or higher Bluetooth version to meet your different usage needs. PackageList: 1 x BT ItemFinder 1 xInstruction Manual