8. What needs to be noted when recording by the M3K?
A: 1. At the beginning of recording, the available capacity of micro SD card shall not be less than 100MB, and the recording shall be stopped automatically after the available capacity is less than 50MB.
2. Theoretically, the recording time is unlimited. However, it would be limited by the capacity of micro SD card and the battery of M3K; When using FAT32 format micro SD card, the record file can't be larger than 4GB.
3. Playback and recording cannot be used at the same time. After recording starts, you cannot exit the recording interface unless the recording is stopped.