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FUNCTION DEFINITION
NO
CONTROL FUNCTION
REMARK
When play music in BT / AUX IN / USB mode, short press
for play/pause (AUX is mute); the corresponding indicator
light flashes during pause, long press to control the
background light to turn on and off.
When playing music in BT / AUX IN / USB mode,
short press for previous song.
When playing music in BT / AUX IN / USB mode,
short press for next song.
When playing music in BT / AUX IN / USB mode,
short press to decrease volume by one scale; long press
to con�nuously decrease volume.
When playing music in BT / AUX IN / USB mode, short press
to increase volume by one scale; long press to con�nuously
increase volume. There is a beep when the volume is at its
maximum, and it will keep beeping if pressing.
Each �me you
swithc the
sources mode,
you must set
the volume
back to 1/3 of
the total
volume.
Indicator light:
Blue: BT
Red: AUX in
Purple: USB
When BT is connected, the blue light will always be on,
and the volume synchronized with the phone.
BT device name: “DS18-BTRC”
BT
Connec�on
Press 3 seconds for power on. A�er turned on the
BTRC/SQ, the default red background light is always on.
A�er power on, the red/blue LED flashes alternately,
the BT is in searching situa�on, and the old connected
device will be searched synchronously and paired. When
the device is searched, only the blue light is on. The blue
light flashes quickly during the connec�on process and is
always on a�er connected.
BT will be disconnected if exceed the receiving range.
The red background light flashes quickly when BT is in
searching situa�on, and wai�ng for connec�on. When
the device returns to the range, it will be automa�cally
reconnected, the blue background light is always on.
Press play to con�nue play music and volume is the
same as earlier disconnec�on. While the device is not in
range, other devices can connect to BT.
Auto
connect
func�on
Note:
Fast flashing: every 0.25 seconds Slow flashing: every 0.5 seconds
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