1.Support Class 10 or above, 8-64GB micro SD card (NOT included). Please format the card in the camera before using. (This gopro type camera doesn't have internal memory)
2.The sound effect will be influenced in the waterproof case. Please do not put it in the waterproof case for a better sound recording.
3.Dual screen cannot be used at the same time. Please press and hold Down button for 3 seconds to switch between the front screen and the rear screen.
4.Recording Time: Each battery for 1080P/2.7K About 180 minutes, 4K About 90 minutes.
5.The quality of the video/picture/sound will be better when playing it back on your phone/computer.
6.The camera resolution will be 1080P(Default resolution) if you are using this camera as a PC cam.
7.For all action cameras in 4K resolution, the EIS and the Lens Distortion can not be used at the same time.