For best performance, a high quality 8-64GB class 10 micro SD card (not supplied) recommended. Please format the memory card at your camera in FAT32 before using.
To make this action camera work, please make sure both the memory card and fully charged battery are inserted.
To get a better quality of video/picture/sound, please playback the files on your phone or computer.
To control your action camera from a distance easily, the remote control (not waterproof) and a free APP " DV KING 4K" are supplied.
To save the battery power, please choose the SCREEN SAVER in the setting of your action camera. PS: Normally the battery could last 90mins, but it will last 60mins when recording at 4K.
The CT9000 action camera can be used as a webcam and the version of the firmware should start with V6. If you have a lower firmware version on this model but want to use this camera as a webcam, please acquire the firmware through the E-mail or our store.
If you are looking for extra suitable accessories, please search these ASINs on Amazon: B074QFDP44(Batteries and charger), B076P7CZ54 (Floating handle), B0794XPMGT (Selfie stick).