Our gps tracking set multiple functions of security, tracking, monitoring surveillance, emergency alarms and management in its entirety. Perfect for tracking vehicles, kids, spouses, elderly persons or assets... How to Use: Preparation: It is necessary to prepare a GSM standard SIM card and a mini memory card, GSM SIM such as AT&T, T-Mobile, and the SIM card needs to have a balance. Power on: Open the card cover and insert the SIM card in the indicated direction. After inserting the mini memory card, the product will automatically turn on and the red light will flash 4 times and turn off. After 30 seconds, it will enter normal standby mode. Indicator light: The power on indicator light remains on for 4 times and goes off, while the low battery indicator light flashes quickly. 1. Insert working GSM standard SIM card into the tracker, then track and map(with Google maps) in real-time over the internet. 2. Monitoring by sending text messages to the tracker. 3. Send 000 to connect cell phone with the GPS. 4. Send 777 to receive the location via a link to Google Map. 5. Send 102 for a link (http://gpsui.net) to download the app and username and password. 6. Send 555 to start recording. 7.Send 666 to stop recording and switch to sound sensor mode. Under this mode, if the device is surrounded by higher than 40db voice it will call your phone. 8. Send 445 to delete recording on TF card. 9. Send 444 to reset phone number. 10. Send 888 to check the GPS status (battery, signal, and TF card storage, etc). 11.Send 999 to restart the GPS. Specification: Color: black. Size: about 1.37*0.78*0.55 inch (L*W*H). Material: ABS. Antenna type: GSM GPS. positioning accuracy: about 100m. Battery: 3.7V 400mA lithium battery. Battery working time: about 100h. Standby time: 12 days . Working time 4-6 days. Package included: 1*mini tracker 1*USB cable 1*manual. Notes: Charging requires a SIM card to be inserted, SIM card requires a balance, otherwise the device cannot be used normally See more?100% Customer Satisfaction? If you have any questions,please feel free to contact us. We will solve your problem immediately. ?Real-Time Location? Full Global Coverage, Attention: GSM standard SIM card requires a balance. Mini tracking device is designed for real time tracking the location of the lost elderly, children, pets, luggage, wallet and vehicles (renting car, truck, motorcycle, freezer, boat, etc). ?Magnetic & Mini Case? GPS tracker small (1.37x0.78x0.55inch) light (1.05oz), magnetic housing waterproof and rainproof, built-in two strong magnetic magnets, firmly attached to the vehicle, will not fall off easily. ?Easy To Use? All you need is a working GSM standard SIM card (Attention:Sim is not included) to insert into the car tracker, then you can track and map in real-time (with Google Maps). ?Track Record? Use magnetic GPS tracker for 24-hour recording, location and sound monitoring, mini tracker with compact and undetectable design, combine security, tracking, monitoring, emergency alarm, management and many other functions, support cell phone remote control, provide secure tracking device for your vehicle assets, elderly, children, spouse, pets, etc.