Features 1. Find the item. When you can't find the item, click the speaker button in the APP to find the item through the sound of the device. 2. Look for the phone. When you can't find your phone, click the device button and the phone will send out an alarm. 3. Anti-loss reminder function, when the distance between the anti-loss device and the mobile phone is more than 15 meters, the two-way call alarm will prompt you to check the items around you in time. 4. View the location function, APP record can view the current map position. 5. Quality Guarantee. We have faith in our product and always back it up with trustful customer service, please reach out to us if you have any questions or problems about our products. Specification Material: ABS Battery: Button battery CR2032 Package Includes: 1 x Bluetooth locator 1 x Button battery 1 x Silicone protective sleeve 1 x User Manual