GPS Dog Tracker, Anti Lost Collar GPS Cats Locator with Alarm for Pets Dog Vehicles Children Elderly Mini SOS Outdoor Navigation GPS Locator 4 Pieces Product Description This anti-loss device is a product based on Bluetooth 4.0 low energy technology. By using the "iSearching" APP software to connect with mobile devices such as cellphones via Bluetooth, the user can easily lose items and valuables (such as keys, Mobile Passes, etc.) are bundled together to realize the functions of recalling lost items and finding the mobile phone. It can also realize functions such as remote control photographing and recording (for example: group photo at a party, selfie, etc.). The effective operating distance of the device anti-lost can be up to 25 meters in open space. You can even use it on babies or pets. You never have to worry about losing them. It can be easily purchased in ultra-convenience. stores, and one button battery can work for more than six months. Product Features: 1. Object search function: Link the anti-loss device with valuables. When the device is connected to the mobile phone Bluetooth APP, use the APP search function to make the anti-lost device emit a sound to find the object. 2. Mobile phone search function: When the device is connected to the mobile phone Bluetooth APP, and you need to find the mobile phone, double-click the button on the device to call the mobile phone, and the mobile phone will emit a sound. 3. Two-way alarm: Set and open 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-loss device are disconnected, the mobile phone and the anti-loss device will sound an alarm. 4. Selfie function: When the device is connected with the mobile phone Bluetooth app, use the Selfie function of the software to take photos wirelessly. 5. Recording function: double click the switch button on the device to record in the APP. 6. Disconnect location: When the item is disconnected from the mobile phone Bluetooth APP, the APP will save the lost location of the item after disconnecting, and the lost location will be displayed on the map in the APP. Product Parameters: 1. Product net weight: 10g 2. Product Gross Weight: 24g 3. Material: Acrylic/ABS 4. Product size: 42*42*8mm 5. Packing size: 108*90*15mm 7. Color: black+white+blue+pink 8. Battery: CR2032 button battery 9. APP: search Delivery quantity: 4 pieces (black+white+blue+pink) lucky meet Note: The data is all measured manually, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.