AnyTone AT-289 Instruction Manual page 22

GETTING ACQUAINTED
Indicator Status and Beep
Transceiver emits a low voltage beep at intervals of 60 seconds,
Warning on low voltage
and red light twinkles.
Scan Green light twinkles every second.
Successfully Decoded
Voices "DU" into any function, "DU DU" or beep voice prompt to
Key Operation
exit any function
[PF1] & [PF2] Key Default
Whisper
TX Power Switch
Professional
13
FM Transceiver