The playback volume is low.
The built-in speaker is provided mainly for checking recorded audio files. If you find the volume not loud enough or have difficulty in understanding what you hear, use headphones (not supplied) or active speakers (not supplied).
The recording volume may be low. Adjust the recording volume level when recording. Also, check the sensitivity level of the built-in microphones and the Scene Select setting to see if they are suitable for the recording situation.
The contents of the Help Guide may be subject to change without notice due to updates to the product's specifications.