USER MANUAL
BT CLOCK RADIO LED SPEAKER
ST250
- Bluetooth: V3.0
- Speaker Output: 10W 4Ω
- Battery capacity: 4000mAh
- Charging Input: 5V / 1A
- Operating Time: up to 6 hours
- Battery Charging Time: up to 4 hours
- Connectivity range: up to 10m
- TF card support: 128MB - 32GB
- Frequency response: 60Hz ~ 18kHz
- SNR: ≥80 dB
- Product Dimensions: 158 x 108 x 70mm (L x W x H)
- Product Weight: 717g (approx.)
TECHNICAL SPECIFICATIONS
TOP CONTROL PANEL
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BACK CONTROL PANEL
1. ON / OFF button
2. Reset button
3. USB DC 5.0V port
4. AUX (Line-in) port
5. TF card slot
- Convenient temperature display
- Rechargeable battery for mobility
- Wake up to music or an alarm tone.
- TF card slot for up to 32GB of music
- Easy to operate using touch controls
- 4 corner LEDs perfect to use as a nightlight
- FM radio, Bluetooth or TF card input options
FEATURES
Turn device on and wait for the display to show “HI”to set the time
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LED LIGHT MODE
1. Once the speaker is powered on, touch the surface or side of speaker
2. To control the brightness touch the speaker again.
3. Includes 3 brightness levels for a convenient nightlight.
LED lig ht
to activate nightlights.
CLOCK MODE
Touch “ “ key to enter clock mode.
Touch or key to switch between 12 Hour System with Fahrenheit Temperature
and 24 Hour System with Celsius Temperature. Touch and hold key to enter time setting mode
Touch key to select the flashing digits in sequence year / month / date /
hour / minute and touch or to adjust the flashing digits (year / month / date / hour /
minute).
Touch key to confirm the setting.
ALARM MODE 1
Touch “ ” key to enter Alarm mode 1.
Touch “ ” or “ ” key to set alarm alert status from OFF to ON or from ON to OFF.
Touch and hold “ ” key to enter the setting for Alarm mode 1 .Touch “ ” key to select
the flashing digits in sequence hour,minute and touch “ ” or ” ” to adjust the digits
(hour / minute).Touch “ ” key to confirm the settings and to set the alarm sound .
Touch“ ” or ” ” to select alarm sound in sequence bb, rA.
bb stands for “Bird sound”, rA stands for “FM radio station”.
Touch “ ” key to confirm all the settings.
Touch “Speaker mesh” to turn on the four corner lights in sequence low,middle,
high brightness and off.
When the alarm alert , touch “Speaker mesh” to turn on snooze function (After 5mins,
the alarm will go off again).
To use MP3 file from TF card as your alarm tone, create a folder named “alarm” in the root
directory of the TF card and putprefered MP3 file into the alarm folder. Insert the TF card into the
speaker and select “bb” as the alarm tone mode.
ALARM MODE 2
Touch “ ” key to enter Alarm mode 2 .
Touch “ ” or “ ”key to set alarm alert status from OFF to ON or from ON to OFF.
Touch and hold “ ” key to enter the settings for Alarm mode 2.Touch “ ” key to select
the flashing digits in sequence hour,minute and touch “ ” or ” ” to adjust the digits
(hour,minute).Touch “ ” key to confirm the settings and to set the alarm sound .
Touch“ ” or ” ” to select alarm sound in sequence bb, rA.
bb stands for “Bird sound ”, rA stands for “FM Radio station ” .
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1. Touch “ ” key to confirm all the settings.
2. Touch the speaker mesh to turn on the four corner LED lights in sequence: low / medium /
high brightness or off.
3. When the alarm goes off, you can touch the speaker mesh to activate snooze mode. The
alarm will go off again after 5 minutes.
4. To use MP3 files from a TF card as your alarm tone, create a folder named “alarm” in the
root directory of the TF card and put prefered MP3 file into the folder. Insert the TF card
into the speaker and select “bb” as the alarm tone mode.
BLUETOOTH MODE
- Touch “ ” key to enter Bluetooth Mode.
- Music playing mode
- Touch “ ” key to play / pause the song.
- Touch “ ” key to play the previous song.Touch and hold “ ” key to decrease the volume .
- Touch ” ” key to play the next song. Touch and hold ” ” key to increase the Volume .
- Use the connected device to control the multimedia speaker
- Handset and Hands-free MODE
- Touch “ ” key to answer a call. Press“ ” key to hang up the call.
How to connect speaker via Bluetooth
*Firstly, turn on Bluetooth device in the smartphone / MP3 player / computer and select the
device name “Astrum ST250” to connect . Once connected , an indication tone can
be heard. When return Bluetooth mode, Bluetooth speaker and Mobile phone will paired
automatically. After successfully pairing once, the Bluetooth speaker and device will remain
paired for future use.
TF CARD MODE
Insert TF card to enter TF card playing mode.
Touch “ ” key to play the song or pause the song .
Touch “ ” key to play the previous song. Touch and hold “ ” key to decrease the volume .
Touch ” ” key to play the next song. Touch and hold ” ” key to increase the volume.
LINE-IN MODE
FM RADIO MODE
SLEEP MODE
®2010 ASTRUM HOLDINGS LIMITED. Astrum is a registered trademark of Astrum Holdings
Limited, Hong Kong. All Rights Reserved. All other trademarks are the property of their
respective owners. All specifications and photos are for reference purposes only .
- Touch “ ” key to enter LINE IN (Aux in) Mode from FM Radio Mode
- Touch and hold “ ” key to decrease the volume.
- Touch and hold ” ” key to increase the Volume .
*LINE-IN cable is plugged in the “AUX” port to connect external player device or
computer audio out.
Touch “ ” key to enter FM Radio Mode from Bluetooth Mode.
Touch and hold “ ” key to search and store the FM Radio stations.
Touch “ ” key to select the stored FM Radio stations
Touch “ ” key to search station manually forward . Touch and hold “ ” key to
decrease the volume. .
Touch ” ” key to search station manually backward. Touch and hold ” ” key
to increase the Volume .
(Adjust the position and connect antenna to enhance FM radio signals.)
1. Touch the “Sleep” key to enter Sleep mode settings. Touch the “Sleep” key again to adjust
the flashing digit in the sequence of S0FF, S15 , S30 ,S60 and S120 to set the count down time.
* The timer can be set for 15mins 30mins, 45mins, 60mins and 120mins to turn off the speaker .
*Next time you want to use sleep timer, please set it again.
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