The APP adopts a beautiful UI design interface, which is very convenient to control. Using low- Bluetooth chip, the battery is more durable, the signal connection is stable, and the return speed is very fast Anti-lost: When the device leaves a certain distance (10-15M), the mobile phone will receive a reminder message Finding objects: When searching for a device on the mobile APP, the device will beep beeping; Quickly press the button of the device twice, the phone will have a prompt tone Camera and video recording: You can control the mobile phone to take pictures and videos at a certain distance through the device buttons, and save Lost location: After the phone is disconnected from the device, the lost map location will be recorded in the APP, and you can navigate to the address with one click Colour: Black Material: ABS Package Contents: 1 x Anti Lost KeyFinder Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.