Material: ABS Battery capacity: 210mAh Size:3.8cm/1.5"*3.8cm/1.5"*0.7cm/0.28" Product features 1. Find objects: bind the anti-loss device with valuables, when the device is connected with the mobile phone APP Bluetooth, use the APP's search function to make the anti-loss device sound, so as to find the item. 2. Look for the mobile phone: When the device is connected to the mobile phone APP Bluetooth, you need to find the mobile phone, double-click the device button to call the mobile phone, the mobile phone will ring. 3. Two-way alarm: Open the setting "Bluetooth disconnect alarm" switch in the software to achieve two-way anti-loss. When the device and the mobile phone APP Bluetooth is in a connected state, if the mobile phone and the anti-loss device Bluetooth disconnected, the mobile phone and the anti-loss device will issue an alarm sound, the item mobile phone is lost, the alarm reminder. 4. Selfie: When the device is connected to the mobile phone APP Bluetooth, use the software's selfie function to take photos wirelessly. 5. Recording: Double-click the switch button of the device to record in the APP. 6. Disconnect positioning: 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 after disconnection is displayed in the map inside the APP