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Multi-function speaker STL 1.5 A1 

Usage and safety instructions 

 

 

 

 

 

 

 

 

 

 

 

 
 

 

 

 

V 1.46 

IAN 68596 

Mat.-Nr: 1732064 

 

Read this user manual carefully before using the 
device for the first time
 and observe all the 
instructions, even if you are familiar with the use of 
electronic devices. Keep the manual safe and 
always pass it on with the device. 

 This symbol in the following text indicates hazards 

which can cause personal injury or damage to 
equipment. 

Supplied items 

 

SilverCrest STL 1.5 A1 multi-function speaker 

 

Mini-USB to USB cable 

Safety instructions 

Intended use 

The SilverCrest STL 1.5 A1 multi-function speaker is 
used in accordance with its intended purpose when it is 
used exclusively for playback of audio files stored on 
microSD cards or if it is connected to an audio source 
with the 3.5mm audio cable. Any other use is not as 
intended. 
The manufacturer does not assume any liability if: 

 

The multi-function speaker is not used as intended. 

 

The multi-function speaker is damaged, incomplete 
or modified prior to connection and use. 

This is an electronic entertainment device. It may only 
be used for private purposes, but not for industrial or 
commercial purposes. 

 General safety information 

 

Keep electric devices away from children or persons 
with mental or physical limitations! Never let such 
persons use electric devices without supervision. 
They cannot always recognise possible hazards.

 

 

Small parts can be fatal if swallowed. Also note that 
there is a risk of suffocation if air passages are 
blocked by the plastic packaging.

 

 

If smoke is produced, or there are any unusual 
sounds or smells, turn the multi-function speaker off 
immediately.

 

In these cases the device should not be

 

used until it has been inspected by authorised 

service personnel.

 

 

 Operational safety 

 

Never use any adapter plugs or extension cables 
which are damaged or which do not comply with valid 
safety standards. 

 

To disconnect a cable always hold the multi-function 
speaker and pull the plug, not the cable. Ensure that 
the cable is not kinked and does not cause an 
obstruction. 

 

If the multi-function speaker is exposed to extreme 
temperature fluctuations, condensation can lead to 
the accumulation of moisture which can cause a 
short circuit. In this case wait until the multi-function 
speaker has reached ambient temperature before 
use. 

Operating environment/Environmental 
conditions 

 

Protect the multi-function speaker against moisture, 
vibration, dust, heat and direct sunlight. It could 
otherwise become damaged. 

Controls and indicators 

Item  Function, operation 

1

 

Lower the volume / Previous track; hold the button 

down to lower the volume. Press the button briefly to 
select the previous track.

 

Audio connection; you can connect an external audio 

source with the 3.5mm jack plug. In this mode 

remove any inserted microSD card before switching 
the device on. Audio output is switched on and off 
with button 3 and the volume is controlled with 

buttons 1 and 4. 

On/off button / Playback / Pause; hold the button 

down to switch the device on and off. Press the 
button briefly when the device is switched on to 

pause or resume playback. 

Increase the volume / Next track; hold the button 

down to increase the volume. Press the button 
briefly to select the next track. 

Headphone connection; insert the 3.5mm jack plug 
of headphones into this socket. The loudspeaker (8) 

is automatically muted and the audio output is only 
heard on the connected headphones. 

 

USB connection; insert the smaller plug of the 

supplied USB cable (mini-USB to USB cable) into 
this socket when the multi-function speaker is 

switched off and insert the large plug into a USB 
socket on your PC or notebook (switch the PC or 

notebook on first). The multi-function speaker is then 
charging. The power indicator (10) flashes green 

during charging. If you would like to access the 
content of a card in the microSD slot (9), the device 

must be switched on before it is connected via USB. 
The operating system automatically recognises the 
device and a free drive letter is assigned. The power 

indicator (10) then flashes orange and you can 
access the content of the microSD card. In this 

operating mode (USB audio mode) the device is 
charging and the audio files on your PC or notebook 

are output on the multi-function speaker. 
Furthermore you can control the Windows

®

 Media 

Player with the buttons of the multi-function speaker. 

Sound box; you can increase the size of the sound 

box. To this purpose turn the upper section of the 
multi-function speaker anti-clockwise until the locking 
mechanism is released and the sound box is 

enlarged. To reduce the size of the sound box, push 
the multi-function speaker together and turn the 

upper section clockwise until it locks in place. 

Loudspeaker 

MicroSD slot; you can play music from a microSD 
card. To this purpose push a microSD card into the 

slot (pointing towards the loudspeaker with the 
contacts facing upwards) until it engages. To remove 

the card, press the microSD card lightly. The card is 
ejected slightly and can be pulled out. 

10  Power indicator (LED); 

Lights up orange: 

 

Device switched on for playback of external audio 

sources 

Flashes orange: 

 

Playback from the microSD card 

 

Operation in USB audio mode 

Flashes green: 

 

Charging 

Lights up green: 

 

Battery fully charged 

 

11  Eyelet; provided for attachment of a strap (not 

supplied). 

 

 

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