QUICK OPERATION GUIDE
SPK-BTF440
MAIN CONTROL BUTTONS
Key Name
Function Key
Name
Function
1
Mode
button
SHORT press
to change
modes
3
Up Button
LONG press to increase
volume
SHORT press to go to next
song / radio station
2
Down
Button
LONG press
to decrease
volume
4
Play/Pause
button
SHORT press to
Play/Pause music playback
SHORT press
to go to
previous song
/ radio station
(Radio mode) SHORT press
to auto-search and store
all available radio stations
(Bluetooth mode) Press to
answer, or hang-up from a
phone call
1 2 3 4