Fangrui Product Details 1. Gps Car Anti-theft Strong Magnetic Installation Positioner 2. Communication Frequency Band: 85090018001900 Μηz 3. Working Voltage: 3.3v-4.2v Dc 4. Working Temperature: -20~+70 Degrees Celsius 5. Charging Voltage: 5v Dc 6. Built-in Lithium Battery: 180mah 7. Applicable To Fleet Management, The Elderly Are Lost, Children Are Lost, And Pets Are Lost. 8. Global Real-time Update Positioning, View Real-time Trajectory, And Make The Itinerary Clear At A Glance 9. Ultra-thin And Intelligent, Global Positioning Terminal, With Powerful App Functions 10. Configure A Highly Sensitive Intelligent Positioning Chip To Improve The Performance Of The Entire Machine 11. Alarm Information Will Be Pushed In And Out Of The Security Fence In Real Time 12. Track Playback Location And Duration For Infinite Playback Within 180 Days 13. Built-in Magnet Adsorption, No Manual Installation Required 14. Single Machine Weight: 15g 15. Size: 41.2x13.6mm