3
Note
• For some vehicle types, the ignition has to be switched
on to supply power to the 12 V car socket. For more
information, please refer to your vehicle’s operating
instructions.
• Disconnect all cable and on-board connections after use.
6.1
Bluetooth
®
pairing
Note
• Check whether your mobile device (MP3 player, mobile
phone, etc.) is
Bluetooth
®
capable.
• If not, the only way you can use the FM transmitter for
playback is with a USB stick or microSD card.
• Note that the maximum range for
Bluetooth
®
is 10 metres
without obstacles such as walls, people, etc.
• Make sure that your
Bluetooth
®
capable terminal device is on
and
Bluetooth
®
is activated.
• Plug the FM transmitter into a car socket located near the
car radio.
• Make sure that the FM transmitter is within the maximum
Bluetooth
®
range of 10 metres.
• Open the
Bluetooth
®
settings on your terminal device and
wait until
BT21H
appears in the list of
Bluetooth
®
devices
found.
• Select
BT21H
and wait until the FM transmitter is listed as
connected in the
Bluetooth
®
settings on your terminal device.
A transmission frequency is now shown on the display.
Note –
Bluetooth
®
password
Some terminal devices require a password in order to connect
to another
Bluetooth
®
device.
• If your terminal device requests a password for connection
to the speaker, enter
0000
.
Note – Connection impaired
After the FM transmitter and terminal device have been
paired, a connection is established automatically. If the
Bluetooth
®
connection is not established automatically, check
the following:
• Check the
Bluetooth
®
settings of your terminal device to
see whether
BT21H
is connected. If not, repeat the steps
listed under
Bluetooth
®
pairing.
• Check whether your terminal device and the FM
transmitter are less than 10 metres apart. If not, move the
devices closer together.
• Check whether obstacles are impairing the range. If so,
move the devices closer together.
6.2 Audio playback (via
Bluetooth
®
)
Start and control audio playback on the connected terminal
device accordingly. Alternatively, audio playback can also
be controlled on the FM transmitter (if the connected device
supports this function).
• Press the
function button to start or pause audio
playback.
• Press the
>
function button to jump forward one title.
• Press the
<
function button to jump backward one title.
6.3 Audio playback
(via USB stick or microSD card)
• Plug the USB stick into the USB socket marked with
(2);
playback will start automatically.
• Insert a microSD card into the card slot (6) on the FM trans-
mitter; playback will start automatically.
Note
• The capacity of the USB stick or microSD card must not
exceed 32 GB.
• The following formats are supported for audio playback:
MP3.
6.4 Manual station search
• Search for an available frequency on your car radio (static
without partial signals).
• Set the same frequency on the FM transmitter. To do this,
press and hold the
button (5) for 2 seconds until the
frequency indicator on the display (3) begins to flash.
• Then press the
<
or
>
button to set the desired frequency.
• The FM transmitter always stores the last frequency set.
Note – Automatic standby
• After 50 to 60 seconds without a music signal or button
being pressed, the FM transmitter switches to standby.
• If it receives a music signal or a button is pressed, the FM
transmitter is activated again.
6.5 Charging function
The FM transmitter has a USB charging socket. This supplies the
charging currents specified in Point 7. ‘Technical specifications’.
Note – Car battery
With some vehicles, it can happen that power continues to
be supplied even though the ignition has been switched off.
Therefore, when not using the product, disconnect it from the
power supply to protect your car battery from discharge.
