"Real-Time Voice Monitoring You can listen to the audio sounds in real-time through this voice recorder, or activate the auto-recording, which will record and store in the cloud 15 seconds each file. ^Multiple PositioningThis new version tracker or locator has a more powerful positioning function than the GF-07, GF-09, GF-19 model which can work with GPS, GSM, LBS and WIFI, such as remote control, one-button searching, step counting and so on. ^About SIM CardThe GPS supports Speedtalk GPS tracker SIM/ T-mobile 2G SIM/ GMS 2G Card, supports 32G memory card. The device does not contain a SIM card and memory card. ^Positioning Query You can check the user's specific location through the mobile app or computer whether it is brought by children, the olds, in the bag or in a car, you can find them easily as soon as possible. ^ Use Precautions1. If the positioning is inaccurate, please restart the device; 2. If it fails to start normally, please charge it for 2 hours and try again; 3. If you cannot get the data, please restore the warehouse settings and restore the factory settings-send a text message: ""1122"" Restore factory password-send SMS: ""pwrst""" All Products From Us Have Undergone Strict Quality Checks. If There Is Any Quality Problem Or You Are Not Satisfied With The Product Contact Us. We Will Give You The Best Solution.