2. Switch to recording mode correctly after booting.

3. Press the play button briefly to start recording. After the recording is completed, the display time on the display screen will jump.

4. Short press the play key to pause and resume recording.

5. Press and hold the button for 2 seconds to automatically save the recording file. Speaker generally refers to power amplifier, which is one of the most basic devices in audio system, commonly known as power amplifier. Its task is to amplify the weak electrical signal of the signal source to drive the speaker to make sound, and it can also refer to other equipment for power amplification.