1、Multiple Applications: Locator tag helps you keep track of your items by attaching it to everyday items such as keys, backpacks or purses. 2、Easy To Use: Use the app to ring a reminder when you're within range of a connection, or let a smart home device find it for you. 3、App Control: Use the for Find My app to see the closest location of your items on a map when the locator is not in connection range. 4、Multipurpose: This item tracking device is suitable for binding for iOS phones, helping you find items, and can also be used for seniors, pets and children. 5、Built In Buzzer: The key item finder has a built in buzzer, so if it is nearby, you can easily find the item by following the sound. Item Type: Locator Tag Material: ABS Product Size: Diameter: Approx. 45mm / 1.77in, Thickness: Approx. 3mm / 0.12in Gross Weight: Approx. 25g/0.9oz Built in Battery: 1 x CR2032 Button Battery 150mAh (Included) Working Voltage: DC 3V Transmission Distance: ≥ 40m/131.2ft (Open Sight Distance) Buzzer: Built in ≥75db (At 10cm/3.9in) 1 x Locator Tag 1 x Instruction Manual 1 x Prying Tool