Sony MAS-A100 IP-Based Ceiling Beamforming Microphone - Manual (Page 72)

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Changing the settings (continued)
Menu Item Settings (*: Default setting)
Common
Settings Available Rec. Time Indicates the remaining recordable time in the current recording
mode and the remaining capacity of the built-in memory and the
SD card.
System Information You can check the system information, such as the linear PCM
recorder model name and the version number of the software.