Grundig GD-RT-AC3016N User Manual page 95

Select the channel(s) if you want to switch playback to another channel or execute
simultaneous playback of multiple channels.
Detailed Explanation of Playback Toolbar:
Button
/
/
Toolbar of Playback
Operation Button
Audio
/
on/Mute
Add default
tag
Reverse
play/Pause
Playback Interface
Operation
Start/Stop
clipping
Add
customized
tag
Stop
95
Button Operation
Lock File
File
management
for video clips,
captured
pictures,
locked
and tags
Digital Zoom
files