Akai ASB70I Operator's Manual page 12

MUTE Button (On Remote Control Only)
Press the MUTE button on the remote control to shut off the speakers temporarily, for example,
to answer the telephone.
The sound stops and the "MUTE" indicator flashes in
the display.
Press the MUTE button again to cancel the mute function and restore the sound.
The "MUTE" indicator disappears.
The mute function will also be cancelled automatically by pressing the VOLUME
VOLUME
buttons.
GB 11
or