Product Details: 1. Model: GF10 2. Communication Frequency Band: 850/900/1800/1900 MHz 3. Working Voltage: 3.3V-4.2V 4. Working Temperature: -20℃+70℃ 5. Charging voltage: 5V 6. Product Size: 41.2*13.6mm Features: 1. Real-time update: Through the mobile application, the GPS locator can accurately track the movement of items and view the location in real time, ensuring the safety of your items and keeping up with the latest developments. 2. Long-lasting : Built-in 120mAh lithium battery, providing long-lasting power support to meet daily use needs without frequent charging. 3. Compact size: As small as a coin, easy to carry, strong magnetic design ensures stable attachment and reduces the risk of loss. 4. Smart alarm: The secure geo-fence system automatically issues an alarm when the locator enters and exits the preset area to enhance security. 5. Wide range of applications: suitable for logistics and transportation, fleet management, financial leasing, electric vehicle anti-theft, pet tracking and private vehicle safety and other scenarios. Product includes: 1*GPS Tracker Note: Please allow slight size errors due to manual measurement; please allow slight color errors under different monitors.