and high quality Features: Small size, light weight and easy to carry. Black shell design, discreet appearance, suitable for tracking vehicles, family members, elderly individuals, or assets. Built-in powerful magnets allow for easy attachment to metal surfaces without additional installation. Requires a compatible SIM card (not included) to be inserted into the device for real-time tracking and mapping via the internet (Google Maps). Can enable o monitoring by calling the SIM card number; operates silently without indicator lights for discreet use. This tracking device offers functions including security, tracking, monitoring, emergency alert, and management. Equipped with strong magnets for secure placement on any metal surface. Function Instructions: Record: Send SMS "555" to the device to start recording. Sound monitoring: Send SMS "666" to the device. GPS track: Send SMS "777" to receive current geographic position and map link. Positioning trajectory: Send SMS "102" to the device. Delete memory card content: Send SMS "445" to the device. Reboot device: Send SMS "999", device restarts after 1 minute. Reset device: Send SMS "444" to the device. Specifications: Item type: Tracking Device Network type: GSM/GPRS Working voltage: 3.4-4.2V DC Power output: DC5V, 300-500mA Battery capacity: 3.7V 400mAh Li-ion Battery Communication frequency: 850/900/1800/1900MHz Charging input: AC110-220V 50/60Hz Storage temperature: -40 to +85°C Operating temperature: -20 to +55°C Expansion card: Mini TF card Continuous talk time: 150-180 minutes Humidity range: 5%-95% non-condensing GPRS: Upload 60, TCP/IP Shell material: Plastic Dimensions: 35x20x14mm / 1.38x0.79x0.55 inch Color: Black Quantity: 1 Set Note: 1. Please allow 0-1cm measurement deviation due to manual measurement. Ensure you are comfortable with this before purchasing. 2. Due to differences in monitor displays, the actual product color may vary slightly from images. Thank you. Package includes: 1 x GF-07 Mini GPS Tracker 1 x USB Cable 1 x User Manual