Usage Tips:Compact and Discreet GPS : The GF-07 GPS is designed for both car safety and keeping track of children, ensuring peace of mind for parents and car owners. Its small size makes it easy to hide, providing covert monitoring without detection. Wide Application: Perfect for vehicles, children, the elderly, or assets. Easy to use with GSM/GPRS support, it provides global coverage to keep you connected and secure. No matter the alarm locator is placed on the car, in the children's schoolbag, the elderly's pocket, or valuables bags, you can send mobile phone SMS instructions to the alarm locator via your mobile phone to query the location of the alarm locator. Which is convenient for you to monitor the whole process and grasp the target in real time. s position. Storage temperature: -40 ° C to + 85 ° C Working temperature -20 ° Cto + 55 ° C Humidity range 5% -95% non-condensing GPRS: Upload 60, TCP / IP working voltage: 3.4-4.2V DC standby current: ≈2.5mA turn on the sound control current: ≈30mA talk current: ≈150mA GSM positioning time: 25 seconds Due to different batches, there may be differences in product printed text, which will not affect use Colour:Black Material:ABS Package Contents: 10x GPS Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.