Low Cost GPS Tracker Long Battery GF07 GPS

After sending the SMS command to the device, it will start recording the sound on the micro SD card. You can interrupt the recording and resume it at any time by sending an SMS. It is also possible to use wiretapping as an audible alarm. The GF-07 has been equipped with a sound detector, which, when triggered, will automatically notify you about it via a phone call made to your number.