If you set the sleep timer, the IC recorder will turn off automatically when the duration of time set for the sleep timer has elapsed.
tab - “Sleep Timer,” and then press
.

or
to select the desired time duration, and then press
.
You can select from “15min,” “30min,” “60min,” “90min,” “120min,” or “OFF.”
STOP to exit the menu mode.
When you set the sleep timer, “
” appears on the display.