1.[No monthly fee, easy to use] sends out a secure signal every two seconds for Apple devices (cell phones, computers, tablets, etc.) to detect, receive, and upload to for Apple's cloud servers to generate a fixed location, which can then be viewed on a map to see its exact location. 2.[Built-in Speaker]Our can help you find things nearby by playing sound to indicate the location. 3.[Versatile and Flexible]Our (for Android and for iOS) When your pet doesn't like the collar they're wearing or the collar is worn out, you can attach the to any collar. 4.[Warm Tips]for Android and for Apple phones; The item finder can only be connected to a single device, but a device can be connected to multiple s. 5.[Wide Application]available for dog collars, cat collars, purses, backpacks, keys, luggage. Bring convenience and peace of mind to your life and never worry about losing them again. Colour: D:White (Round white hook + strong magnetic) Material:ABS Package Contents: 1 x locator (including 1 x button battery) 1 x lanyard Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.