Teufel ROCKSTER CROSS User manual

ROCKSTERCROSS
Technical Description and User
Manual
Water-resistant active Bluetooth® speaker with
control for smartphone voice assistant

2• ROCKSTER CROSS
Contents
For Your Safety .................................. 4
Proper use ..................................... 4
Package contents.............................. 8
Operational Controls And
Connections ...................................... 8
The Rechargeable Battery .............. 10
Charging The Rechargeable
Battery.........................................11
Powerbank ..................................11
Setup................................................12
Location tips................................12
Carrying strap..............................12
Operation.........................................13
Activating and deactivating ........14
Volume.........................................14
Outdoor mode ............................. 14
TWS mode ...................................15
Bluetooth®.................................. 16
AUX playback...............................18
Care And Cleaning...........................19
Troubleshooting...............................20
Technical Data.................................21
Declaration of Conformity...............21
General Notes And Information
Notice
The information in this document
may change without prior notice and
in no way constitutes any liability
on the part of Lautsprecher Teufel
GmbH.
No part of this user manual may
be reproduced in any form or be
broadcasted in any way electroni-
cally, mechanically, by photocopy or
recording without the written permis-
sion of Lautsprecher Teufel GmbH.
© Lautsprecher Teufel GmbH
Version 1.0
September 2018
Trademarks
© All trademarks are the property of
their respective owners.
The Bluetooth®
word mark and
Bluetooth®symbol are registered
trademarks of Bluetooth SIG, Inc.
and any use by Lautsprecher Teufel is
licensed.
Qualcomm aptX is a product of Qual-
comm Technologies International,
Ltd.
Qualcomm is a trademark of Qual-
comm Incorporated, registered in the
USA and other countries, whose use

3• ROCKSTER CROSS
Contact
Please contact our customer service
department with any questions,
suggestions, or complaints:
Lautsprecher Teufel GmbH
BIKINI Berlin
Budapester Str. 44
10787 Berlin (Germany)
Telephone:
00800 200 300 40 (toll-free)
Fax:
+49 (0)30 / 300 930 930
Online support:
www.teufelaudio.com/service
Contact form:
www.teufelaudio.com/contact
has been approved. aptX is a trade-
mark of Qualcomm Technologies
International, Ltd., registered in the
USA and other countries, whose use
has been approved.
Original packaging
If you wish to exercise your eight-
week right of return, we ask that you
be absolutely sure to hold onto the
packaging. We can only accept the
return of the speakers WITH THE
ORIGINAL PACKAGING.
Empty boxes are not available!
Complaints
In case of a complaint we will need
the following information to process
your enquiry:
1. Invoice number
Can be found on the sales slip
(enclosed with the product) or on the
order confirmation received as a PDF
document, e.g. 4322543
2. Serial number or batch number
Located on the bottom of the device,
e.g. serial no.: KB20240129A-123.
Thank you for your support!

4• ROCKSTER CROSS
For Your Safety
Proper use
The splash-proof speaker is designed
for the playback of music and speech
from an external player via Blue-
tooth®or cable.
Only use the speaker as described
in this user manual. Any other use
will be deemed as not in accordance
with the instructions and may lead to
damage of property or even persons.
The manufacturer accepts no liability
for damage caused by improper use.
The speaker is intended for private
use.
Before operating the speaker,
please read the safety notes
and user manual carefully.
Only in this way, can you ensure that
all functions are used in a safe and
reliable manner. Store the user
manual in a safe place and also be
sure to pass it on to any subsequent
owner.
Signal terms
You can find the following signal
terms in this user manual:
WARNING
This signal term indicates a
moderate risk, which, if not
avoided, may result in death
or severe injury.
CAUTION
This signal term indicates a
low risk, which, if not avoided,
may result in minor or
moderate injury.
NOTICE
This signal term warns you of
potential damage.
Safety notes
This chapter contains general safety
notes which you should always
observe to protect yourself and third
parties. Also observe the warning
notes in each chapter of this user
manual.

5• ROCKSTER CROSS
WARNING
The enclosed mains adapter is not
water-resistant!
–Do not operate the mains adapter
in wet rooms and protect it from
dripping and splashing water.
Make sure that no vases or other
liquid-filled objects are located on
or near the mains adapter in order
to prevent liquid from penetrating
the housing. If water or other
foreign objects should enter the
unit, immediately disconnect the
mains plug. Then send the device
to our service address.
WARNING
Touching live parts can result in
severe injury or death.
–When connecting the mains
adapter, make sure that the
correct voltage is present. You can
find more information about this on
the rating plate.
–Regularly check the device and the
mains adapter for damage.
Immediately disconnect the mains
plug and do not operate the device
if its housing or mains cord is
defective or exhibits other visible
damages.
–This device can only be completely
disconnected from the grid by
pulling the mains adapter. Thus,
make sure that the mains plug is
always easily accessible.
–If the device emits smoke, smells
burnt or produces unusual sounds,
immediately disconnect it from the
mains and do not operate it further.
–Never open the device housing.
Repairs may only be carried out by
an authorised specialist workshop.
Only parts that match the original
specifications may be used.
–Only use the enclosed mains
adapter to charge the integrated
rechargeable battery.
–Only use the accessory products
specified by the manufacturer.
–Never modify the device. Unauthor-
ised modifications may affect the
safety and functionality.
WARNING
An unsuitable setup location may
result in injury and damage.
–If the speaker is not securely
mounted, do not use it in vehi-
cles, in unstable locations, on
wobbly tripods or furniture, on
underdimensioned brackets etc.
The speaker may tip or fall over
and cause injury to persons or be
damaged itself.
–Position the speaker in such a way
that it cannot be knocked over
inadvertently and make sure that the
cables do not pose a tripping hazard.
–Do not use the device in envi-
ronments where there is a risk of
explosion.
–Only use the Bluetooth function
in locations where wireless radio
transmission is allowed.

6• ROCKSTER CROSS
WARNING
Lithium rechargeable batteries
can explode if handled improperly.
–You must not heat or short circuit
rechargeable batteries or dispose
of them in fire.
–Do not expose the rechargeable
batteries to direct sunlight.
–Do not place the speaker near
sources of heat (e.g. heaters,
ovens, other heat generating
equipment such as amplifiers etc.).
WARNING
Children can become trapped in
the packaging film when playing
and suffocate.
–Do not allow children to play with
the device or the plastic wrapping.
There is a danger of suffocation.
–Never allow children to operate
electrical equipment unsupervised.
CAUTION
Extended listening at
high volumes may lead to
hearing loss.
To avoid damage to health, avoid
extended listening at high volumes.
–To avoid damage to health, avoid
extended listening at high volumes.
–When the volume is set high,
always keep a certain distance
from the device and never place
your ears directly on the speaker.
–If a speaker is set to full volume,
this may produce very high sound
pressure. This may have psycho-
logical consequences and also
cause physical injury. Children and
pets are particularly at risk. Set
the volume control of your external
player to low volume before you
turn it on.
CAUTION
This product contains magnetic
material.
–If necessary, consult your physician
and ask for effects on implants
such as pacemakers or defibrilla-
tors.
NOTICE
The ROCKSTER CROSS is splash-
proof but not watertight!
–The splash-proof protection is only
effective if the rubber caps on the
connections seal them off properly.
–Normal rain and a few water
splashes won’t cause any damage,
but you should avoid spraying it
directly with a hose.
NOTICE
Gross misuse and incorrect care
are the main reasons for damage
to high-performance rechargeable
batteries.
–Avoid deep discharge of under
20% for optimal rechargeable
battery power.
–Recharge your rechargeable
battery frequently.

7• ROCKSTER CROSS
–Store your rechargeable battery in
a cool, but frost-free area, ideally
at 15 °C. Higher temperatures
result in a higher rate of self-dis-
charge and shorten the intervals
between charges.
–Do not expose the rechargeable
battery to direct sunlight or other
sources of heat.
–A deep discharge damages the
rechargeable battery cells. The
most frequent cause of deep
discharge is prolonged storage or
failure to use a partially discharged
rechargeable battery. Only store
the rechargeable battery once it is
fully charged.
Old devices must not be
disposed of with house-
hold waste!
If the ROCKSTER CROSS
is no longer operational, every
consumer is required by law to
dispose of used devices separately
from household waste, e.g. at a
collection point run by the communal
authority/borough. This ensures
that old devices are recycled in a
professional manner and also rules
out negative consequences for the
environment.
For this reason, electrical equipment
is marked with the adjacent symbol.
Rechargeable
batteries must not be
disposed of with
household waste!
Every consumer is required by law to
bring all batteries and rechargeable
batteries to a collection point run by
the communal authority/borough
or to a retailer, so that they can be
disposed of in an environmentally
friendly manner.
Please only turn in batteries and
rechargeable batteries which are
empty!

8• ROCKSTER CROSS
Package contents
(1) ROCKSTER CROSS
(2) Mains adapter
(3) Mains cord for mains adapter (2)
(4) Carrying strap
• Check that all items have been
delivered and that nothing is
damaged. If you find any damage,
do not operate the device; instead
contact our customer service
department (see „Contact“ on
page 3).
• Please keep the packaging for the
duration of the warranty period.
(2)
(3)
(4)
(1)
Operational Controls And Connections
20V 3,25 A 5V 0,5 A
(5) (6) (7) (8) (9) (10) (11) (12) (13)
(16)
(14)
(15)(17)(18)

9• ROCKSTER CROSS
(5)
Push and hold for 3 seconds:
Enable and disable TWS mode
(see page 14).
(6)
Push and hold for 3 seconds:
Start Bluetooth pairing mode.
Push and hold for
10 seconds: Clear all saved
Bluetooth connections.
(7) Enable and disable outdoor
mode (see page 14).
(8) LED indicator for charging and
rechargeable battery charge
level.
(9)
Push and hold for 2 seconds:
Switch the device on, the
button will be illuminated in red.
Tap during operation: Display
battery charge with LEDs(8).
Push and hold for 2 seconds:
Switch the device off.
(10) Only with Bluetooth playback:
Tap: Enable the smartphone’s
voice assistant.
Tap for a phone call:
Accept call/hang up.
(11) –Reduce the volume.
In case of an incoming call:
Reject call.
In case of BT playback push
together with button (12):
Skip back.
(12)
Playback/pause.
Tap in case of a phone call:
Accept call/hang up.
(13) +Increase the volume.
In case of BT playback push
together with button (12):
Skip forward.
(14) Loops for carrying strap (4).
(15) USB port for the power supply
of external players such as MP3
players or smartphones
(type A, 5 V, 0.5 A). Data trans-
mission is not possible.
Please note that charging
a device may reduce the
rechargeable battery life of your
ROCKSTER CROSS.
(16) USB micro port for service.
(17) Mains adapter connection.
(18) AUX IN, stereo input with a
3.5 mm jack plug socket.

10 • ROCKSTER CROSS
The Rechargeable Battery
You can operate the
ROCKSTER CROSS via the enclosed
mains adapter or the integrated
rechargeable battery.
– Before first use, charge the
rechargeable battery for approx.
3 to 4 hours.
CAUTION
Batteries (particularly lithium
batteries) can explode if used
improperly.
–You must not heat or short
circuit rechargeable batteries
or dispose of them in fire.
–Do not expose the recharge-
able batteries to direct
sunlight.
–Only use the enclosed mains
adapter for charging.
The integrated lithium ion recharge-
able battery provides up to 20 hours
of operating time – regardless of the
volume and the amount of bass in
the tracks played.
Thanks to the Powerbank function,
you can charge another device (e.g.
smartphone) via the CHARGING USB
jack (15).
Please observe the maximum
charging current of 0.5A and that
charging an external device reduces
the operating time.
Rechargeable battery
charge level
You can display the rechargeable
battery charge level by tapping the
button (9).
(8) (9)
76-100% all 4 LEDs are illumi-
nated
51-75% 3 LEDs are illuminated
26-50% 2 LEDs are illuminated
11-25% 1 LED is illuminated
<10% Bottom LED is flashing
To protect the rechargeable battery, the
ROCKSTER CROSS has deep discharge
protection, which switches the device
off once the threshold is reached.
If the rechargeable battery
charge diminishes, the
ROCKSTER CROSS will emit two
short warning tones several times
and the LED at the bottom of the
rechargeable battery indicator (8)
will blink. Depending on the volume,
operation will still be possible for up
to 60 minutes.
In this case, connect the mains
adapter as soon as possible.

11• ROCKSTER CROSS
Charging The
Rechargeable Battery
The integrated Li-Ion rechargeable
battery is charged as soon as the
ROCKSTER CROSS is supplied with
power from the mains adapter (2).
Connect the small plug of the mains
adapter to the POWER jack (17)
and connect the mains adapter to a
socket (100–240V~, 50/60 Hz) via
the mains cord(3).
(2) (3)
(8) (9)
(17)
20V 3,25 A
Four white LEDs on the rechargeable
battery indicator (8) signalise the
charging process:
100% all 4 LEDs are illuminated
75-99% 3 LEDs are illuminated,
4th is flashing
50-74% 2 LEDs are illuminated,
3rd is flashing
25-49% 1 LED is illuminated, 2nd
is flashing
<25% Bottom LED is flashing
Powerbank
You can charge an external player
(e.g. smartphone) via the CHARGING
USB jack (15).
(15)
5V 0,5 A
• The max. charging current amounts
to 0.5 amps.
The charging process is also
continued when you switch the
ROCKSTER CROSS off or it switches
to standby after not being used.
NOTICE
In battery mode, charging
an external player reduces
the operating time of the
ROCKSTER CROSS.

12 • ROCKSTER CROSS
Location tips
• Select a stable, level base.
• Select a location away from heat
sources and direct sunlight.
• If applicable, lay the connector
cords so that they do not pose a
tripping hazard.
• Do not place any heavy objects on
the ROCKSTER CROSS.
You can also tilt the
ROCKSTER CROSS back slightly so
that it projects sound at an upwards-
facing angle. In the process, make
sure that no plugs (USB, mains
adapter) are clamped in.
NOTICE
On flat surfaces (e.g. table
or dresser), the device may
move and even fall down if set
up in an inclined position and
when playing loud music.
–Only set up the device on the
ground in an inclined posi-
tion.
Setup
Carrying strap
You can hang the ROCKSTER CROSS
around your shoulders like a bag with
the carrying strap (4).
(4)
Secure the snap hooks of the
strap on the two loops (14) of the
ROCKSTER CROSS.
(14)
NOTICE
Plugs, which may be
connected to the ports
(15) - (18) , can be damaged
or damage the device in the
process.
–Only use the carrying strap
if no plugs are connected to
the ROCKSTER CROSS.

13• ROCKSTER CROSS
Operation
CAUTION
Extended listening
at high volumes may
lead to hearing loss.
–To avoid damage to health,
avoid extended listening at
high volumes.
–When the volume is set
high, always keep a certain
distance from the device and
never place your ears directly
on the speaker.
–If a speaker is set to full
volume, this may produce
very high sound pressure.
This may have psycholog-
ical consequences and also
cause physical injury. Chil-
dren and pets are particu-
larly at risk. Set your signal
source device volume control
to a low setting before
turning on the power.
NOTICE
If the device is subjected
to warm temperatures after
being cold (e.g. after trans-
port), condensation may occur
inside of it.
–In this case, wait at least
2 hours before you connect
and activate it.

14 • ROCKSTER CROSS
Activating and
deactivating
Activating
– Push and hold the button (9) for
approx. 2 seconds.
The ROCKSTER CROSS will switch
on and the ring around the button
will be illuminated in red.
(9)
Deactivating
– Push and hold the button (9) for
approx. 2 seconds.
The ROCKSTER CROSS will switch
off.
Auto off
• The device will automatically switch
to standby if no input signal is
received for 10 minutes.
As soon as there is an input
signal or a button is pushed, the
ROCKSTER CROSS will switch back
on.
• If operated with power from the
integrated rechargeable battery,
the ROCKSTER CROSS will switch
to energy-saving mode after an
additional 10 minutes and can only
be switched back on by pushing
the button (9).
Volume
– With the – (11) and +buttons (13),
you can reduce or increase the
volume.
(11) (13)
You can gradually adjust the volume
by tapping. Pushing and holding will
change the volume continuously.
Outdoor mode
Outdoor mode is a technology for
improving the listening experience
outside in loud and uncontrolled
surroundings.
This is achieved by compensating
certain frequencies. You can switch
outdoor mode on and off with the
button (7).
(7)

15• ROCKSTER CROSS
TWS mode
“True Wireless Stereo” is a new
standard for transfer via Bluetooth
with a sound quality that has not
been reached to date.
You can pair the ROCKSTER CROSS
with compatible devices via Blue-
tooth so both devices play the same
music. This only works with the
ROCKSTER CROSS and the ROCKSTER
GO.
• The range is approx. 10 metres.
Thus, you can use two devices at the
same time to supply a larger area
with sound.
1. Push and hold the button (5) for
approx. 3 seconds.
(5)
Pairing has started and the ring
around the button pulses in white.
2. Start pairing on the second TWS
device (refer to the user manual for
the other device).
After a short time, the two devices
will connect with one another.
On the ROCKSTER CROSS, the ring
around the button (5) will now
light up continuously in white and
a tone will sound siganling connec-
tion.
Both devices will now play the
same music.
– Control playback on the
ROCKSTER CROSS.
– Push and hold the button (5) for
approx. 3 seconds to disable TWS
mode.
The ring around the button will go
out and the connection will end.

16 • ROCKSTER CROSS
Bluetooth®
Via Bluetooth®, you can estab-
lish a wireless connection
between a compatible external
player (e.g. smartphone) and the
ROCKSTER CROSS. The audio output
of your external player is then emitted
by the ROCKSTER CROSS.
You can also register two Bluetooth
devices and have them played in
alternation.
For smartphones with Android or
an IOS operating system, you can
also use the voice assistant via the
ROCKSTER CROSS.
NOTICE
Only use the Bluetooth®
function in locations where
wireless radio transmission is
allowed.
Bluetooth®options
Depending on the device type and
operating system, your external
player/smartphone may also have a
number of Bluetooth®options such
as media playback and call function.
Here you can activate and deactivate
the desired options.
You can find more information about
the Bluetooth®options in the user
manual for your external player/
smartphone.
Pairing
To play the audio of your external
player on your ROCKSTER CROSS
via Bluetooth®, you must first
connect the devices with each
other. This is called “Pairing”.
The ROCKSTER CROSS can save
data from up to seven external
players, which can be subsequently
connected to without having to repeat
the pairing process.
1. Turn on the Bluetooth®function on
your external player.
2. Push and hold the button (6) for
approx. 3 seconds.
(6)
You will hear a short signal tone
and the ring around the button will
be illuminated in blue.
3. Let your external player/smart-
phone scan for Bluetooth®
devices. You will find more
information about this in the
user manual of your external
player. After the search run, the
“Teufel ROCKSTER CROSS” should
also be present in the list of
detected devices.
4. Select “Teufel ROCKSTER CROSS”
from the list of detected devices.
Pairing is now complete and your
ROCKSTER CROSS will now act as
a Bluetooth®playback device. The
ROCKSTER CROSS will now play

17• ROCKSTER CROSS
back all sounds that would other-
wise be played by your external
player/smartphone.
5. If you would like to pair a second
external player, repeat steps 1 to 4
with the second device.
You can then select the
Teufel ROCKSTER CROSS from
the list of paired devices on the
first device. Now you can use both
devices in party mode in alterna-
tion (see chapter “Party mode”).
Playback
The volume setting of the
external player affects the
volume of the ROCKSTER CROSS.
• Start playback on your external
player.
• Pause playback:
Briefly push the button (12).
• Continue playback:
Briefly push the button (12).
• Play next track:
Tap the buttons (12) and +(13)
at the same time.
• Start the track from the beginning:
Tap the buttons (12) and –(13)
at the same time.
• Play previous track:
Tap the buttons (12) and –(13)
twice at the same time.
Party mode
If you are using two external players
at the same time, you can look for
the next track on one device while
the other is playing. Once the track is
over, push the stop or pause button
and start playback on the other
device.
(11)(10) (12) (13)
Voice assistants
Prerequisites: Present Bluetooth
connection and voice assistant on
the smartphone is enabled.
To activate the assistant, tap the
button (7) and wait until the assistant
responds. Then simply speak in the
direction of the ROCKSTER CROSS.
Call function
You can use the ROCKSTER CROSS
as a hands-free device for your
smartphone.
– In the event of an incoming call,
your smartphone will ring and the
ROCKSTER CROSS will also emit
the ring tone. Any media playback
will be paused.

18 • ROCKSTER CROSS
AUX playback
Connection
The AUX IN jack (18) serves to
connect an external player using a
stereo cable with a 3.5mm jack plug.
You can connect any external players
with a line-out jack or headphone
jack.
(18)
20V 3,25 A
Playback
1. If applicable, stop playback from a
Bluetooth device.
2. Start playback on your external
AUX player.
The volume setting of the
external player affects the
volume of the ROCKSTER CROSS.
3. Control all playback functions via
the external player.
– To reject the call, tap the –button
(13). The call will be ended and the
caller will hear the busy signal.
– To take the call, tap the button
(10) or (12) on the
ROCKSTER CROSS.
– Now you can answer the call with
your ROCKSTER CROSS via the
integrated microphone.
– Push the button 18 or (12)
again to end the call.
Media playback will resume.
Terminating the Bluetooth
connection
To terminate the Bluetooth®connec-
tion, switch the Bluetooth®function
on your external player/smartphone
off.
– To delete the list of known external
players, hold the button (6) down
for approx. 10 seconds until two
short signal tones can be heard.
(6)

19• ROCKSTER CROSS
Care And Cleaning
NOTICE
External influences may
damage or destroy the
device.
–If the device is to be left
unattended for a prolonged
period of time (e.g. during
a vacation) or if a thun-
derstorm is forecast, pull
the mains plug out of the
socket. Otherwise, sudden
overvoltage could cause the
device to become defective.
–If possible, only use plain
water without any additives.
In case of stubborn marks,
a mild soap solution may be
used.
–Do not use caustic cleaning
products, white spirit,
thinners, petrol or similar
under any circumstances.
Such cleaning agents may
damage the delicate surface
of the housing.
• Ideally, you should remove dust or
small amounts of dirt with a dry,
smooth leather cloth.
• Use a damp cloth to rub off stub-
born dirt. Make sure that no liquid
penetrates the housing.
• Then immediately wipe the damp
surfaces off with a soft cloth
without applying pressure.

20 • ROCKSTER CROSS
Troubleshooting
The following advice should help you to solve problems. If this does not work, our
online manual will provide help:
https://manual.teufelaudio.com
Problem Possible cause/solution
The ROCKSTER
CROSS doesn’t
emit sound.
The rechargeable battery is empty.
Connect the mains adapter and charge the rechargeable
battery.
No sound. The volume has been set too low.
Increase the volume.
The volume of the external player has been set too low.
Carefully increase the volume of the external player.
No sound with
Bluetooth®.
No Bluetooth® connection.
Establish a connection (see “Bluetooth®” on page 16).
ROCKSTER CROSS has not been selected as the output
device.
On the external player, select “Teufel ROCKSTER CROSS” as
the Bluetooth®output device.
Bluetooth® connection impaired by another radio system
(e.g. cordless telephone, Wi-Fi).
Move the devices causing the disturbance.
Playback is noisy. Generally speaking, the ROCKSTER CROSS is a very
low-noise system. The speaker system with very high resolu-
tion in the high range area can expose the poor quality of a
signal source (e.g. from MP3 files).
Ensure that the source is sending a clear signal to the
ROCKSTER CROSS.
The voice assis-
tant doesn’t
work.
Activate the voice assistant on the smartphone.