Device reset hole: Used to manually reset your device.
Micro SIM card slot: Insert or remove your nano SIM card here.
OBD-II interface: Used to connect to the OBD-II port on your vehicle.
Power status light: Used to display whether the device is powered by the vehicle or internal battery.
Restart button: Used to restart your device.
Signal status light: Used to indicate your device's connection status.
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