![A2T A2T-55W21K-U Instruction Manual Download Page 12](http://html.mh-extra.com/html/a2t/a2t-55w21k-u/a2t-55w21k-u_instruction-manual_448106012.webp)
12
Remote Control
Power
Switch between working mode and standby states
Source
Open/close the signal source list
Navigation Keys
Select or adjust menu options
OK
OK
Confirm the operation
Menu
Show/hide the main menu
Home
Display the Android home page
Back
Return to the previous interface
OPS
Switch to OPS source
Writing Page
Switch to the writing page
Snapshot
Take a screenshot
Vol -
Decrease the volume
Mute
Enable / disable the sound
Vol +
Increase the volume
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