HYC-S9 2 PCS Round Bluetooth Object Finder Mobile Phone Tracking Locator Anti-Lost Two-Way Alarm Features: 1. Object-finding function: bind the anti-lost device to valuables. When the device is connected to the mobile phone APP Bluetooth, use the APP's search function to make the anti-lost device make a sound to find the item. 2. Find mobile phone function: When the device is connected with the mobile phone APP Bluetooth, when you need to find the mobile phone, double-click the device button to call the mobile phone, and the mobile phone will make a sound. 3. Two-way alarm: set and turn on the "Bluetooth disconnection alarm" switch in the software to realize two-way anti-lost. When the device is connected to the Bluetooth of the mobile phone APP, if the Bluetooth of the mobile phone and the anti-lost device are disconnected, both the mobile phone and the anti-lost device will sound an alarm. 4. Selfie function: When the device is connected to the mobile phone APP Bluetooth, use the software's Selfie function to take pictures wirelessly. 5. Recording function: double-click the switch button of the device to record in the APP. 6. Disconnect location: When the item is disconnected from the mobile phone APP Bluetooth, the APP will record the lost location of the item after disconnection, and the lost location will be displayed in the map in the APP after disconnection. Features: 1. Using Bluetooth 4.0 technology, low power consumption, button battery CR2032 power supply, standby for more than 6 months, easy to replace. 2. Support iOS11.0 system and Android8.0 or higher system (Bluetooth 4.0 required) Parameters: 1. Net weight: 10g 2. Material: ABS 3. Product size: 38x38x10mm 4. Battery: button battery CR2032 5. APP: isearching 6. Operating distance: within 25m