To make the use of the camera more convenient, we provide a double-port cigarette-lighter adapter in the product pack. While the adapter is charging the camera, you can still use the other USB socket for your another electronic device. However, do plug the charging cable of the camera to the socket close to the blue light.
When the adapter is plugged into to cigarette-lighter, make sure the blue light is on. Otherwise, plug the adapter again and push it to the end of the cigarette-lighter. The adapter will charge the camera only when the blue light is on.