Bosch Professional GPB 18V-2 C Original Instructions Manual page 18

18 | English
– To start playback of a saved station, briefly press one of
the preset buttons (5). The number of the storage space
will appear on the storage space indicator (c). If required,
switch between audio sources FM and FM2 by pressing
the source button (7), to allow you to go back to all saved
stations.
Setting the Rod Antenna
The radio is supplied with a fitted rod antenna (6). For FM
radio operation, point the rod antenna in the direction that
enables the best reception.
If the reception is insufficient, position the radio at a differ-
ent location that enables better reception.
Note: When operating the radio in the direct vicinity of ra-
dio-communication equipment or radio transceivers, or
other electronic equipment, the radio reception can be sub-
ject to interference.
Connecting External Audio Sources via AUX
Remove the protective cap of the connector compart-
ment (16) and insert the 3.5‑mm connector of the AUX
cable (26) into the AUX IN socket (25). Connect the AUX
cable to a suitable audio source.
To play back the AUX audio source, press the source but-
ton (7) until AUX appears on the audio source indicator (b).
After removing the AUX cable connector, reattach the pro-
tective cap of the connector compartment (16) to protect
against dirt/debris.
If one of the preset buttons (5) is pressed during AUX opera-
tion, the radio will switch to the station that was saved in the
last used radio operating mode.
Playing Back/Controlling External Audio Sources via
Bluetooth®
To play back an audio source (e.g. smartphone) via
Bluetooth®, either press the source button (7) until the
Bluetooth® indicator (a) appears in the display, or briefly
press the Bluetooth® button (11) regardless of the current
audio source.
If the radio has already been connected to an external audio
source via Bluetooth® and if this audio source is available, a
connection to this audio source will automatically be estab-
lished. As soon as the connection is established, the
Bluetooth® indicator (a) will light up continuously.
GPB 18V‑2 SC: The name of the device connected via
Bluetooth® is displayed on the top line of the multi-function
indicator (k). The text from the connected device appears
on the bottom line.
If a connection cannot be established within two minutes,
the connection set-up will be cancelled and the Bluetooth®
indicator (a) will flash continuously.
GPB 18V‑2 SC: <Not connected> will appear on the multi-
function indicator (k).
The radio will shut off automatically after another
17 minutes without a connection being established.
Establishing a new Bluetooth® connection:
– To establish a connection to a new external audio source
(PAIRING), press the Bluetooth® button (11) for longer
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than half a second. This is also possible during a search
process, if there is an existing connection or when operat-
ing with another audio source.
– The radio will start the search process. During the search
process, the Bluetooth® indicator (a) will flash.
– Activate the connection via the external audio source. For
smartphones, that is generally possible via the settings in
the Bluetooth® menu. The radio will appear as an avail-
able source under the name GPB 18V‑2 C xxxx or
GPB 18V‑2 SC xxxx. Please observe the operating in-
structions for your audio source/smartphone.
– As soon as a connection is established via Bluetooth®, the
Bluetooth® indicator (a) will light up continuously.
The audio source connected via Bluetooth® can also be con-
trolled via the radio:
– To select a track and to start playback, briefly press the
seek button (scan up) (9) or the seek button (scan
down) (10) until the required track has been reached.
Playback of the selected track is started automatically.
– To interrupt playback, press the mute button (8). The
pause indicator (f) will appear in the display.
– To continue playback, press the mute button (8) again,
change the volume via the on/off button (2) or press the
seek (scan up) button (9) or the seek (scan down) but-
ton (10).
– To fast-forward or rewind within a track, press and
hold the seek (scan up) button (9) or the seek (scan
down) button (10) until the required place in the track
has been reached.
If one of the preset buttons (5) is pressed during operation
via Bluetooth®, the radio will switch to the station that was
saved in the last used radio operating mode.
Playback with True Wireless Stereo (with Bluetooth®
audio source)
If an audio source is played back via Bluetooth®, the true
wireless stereo (TWS) function can be activated. Two radios
(either GPB 18V‑2 C or GPB 18V‑2 SC) can be used as right-
hand and left-hand speakers for the same playback.
Activating the true wireless stereo function:
– One of the two radios must already be connected to the
audio source via Bluetooth®.
– Selecting the radio as the right-hand speaker: Select from
the menu <TWS> → <TWSR> (GPB 18V‑2 C) or
<TWS> → <TWS Right> (GPB 18V‑2 SC).
– Selecting the radio as the left-hand speaker: Select from
the menu <TWS> → <TWSL> (GPB 18V‑2 C) or
<TWS> → <TWS Left> (GPB 18V‑2 SC).
– Switch on the operating mode Bluetooth® on the second
radio as well.
– Select the other speaker from the menu on the second ra-
dio.
– Control the playback via Bluetooth® as usual.
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