B-trek S4 User Manual
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Before using your speaker, please read the user manual carefully for proper
use and maintenance.
Thank you for your purchase of the B-Trek S4 Bluetooth speaker. Please read the
manual carefully before using your speaker as it will provide you with information
to operate and maintain your speaker correctly.
• Sturdy and portable design to take anywhere.
• Bluetooth technology with 10m (30ft) range.
• Hands free function on Bluetooth mode and compatible phone.
• AUX line in to allow direct connection to any device through a 3.5mm audio cable.
• AUX line out to allow you to pass through Bluetooth music to any device through
a 3.5mm audio cable.
• Rechargeable battery that charges through micro USB cable.
1. Basic Operation
• Move the On/Off switch to the on position to power on the speaker.
• Press the play/pause/answer button ( ) to pause or play a song, or pick up
a phone call when in Bluetooth hands free mode.
• Press the previous/volume down or next/volume up buttons ( , ) to
change to the next or previous song.
• Press and Hold the previous/volume down or next/volume up button ( , )
to adjust the volume accordingly.
• Auto off feature: The speaker will automatically shut off after five minutes if it is
not connected to conserve battery power. Just toggle the On/Off switch to turn it
back on.
2. Bluetooth Operation
• Pairing: When the speaker is turned on it will automatically be in pairing mode if
not already paired to a device. Search for B-Trek S4 in your device’s pairing screen
and select to connect it. If asked for a pairing code or password enter 0000 (four
zeroes). If not in pairing mode for some reason, turn the device off and on again
while making sure no other devices are paired to the speaker until you can see the
speaker for pairing in your device.
• Music playback & Volume can be controlled from the device or the speaker by
using the Basic Operation instructions above.
• Hands Free: If the speaker is paired with a mobile phone, it can function as a
hands free device. When you have an incoming call press the play/pause/answer
button ( ) to answer. Hold the play/pause/answer button ( ) for 3 second
to reject the call. You can also press the play/pause/answer button ( ) quickly
twice, to redial the previous call you made.
3. AUX line in Operation
• Inserting a 3.5mm auxiliary audio cable into the AUX line in port will automatical-
ly set the speaker in the AUX line in mode. You must disconnect the 3.5mm
auxiliary audio cable to go back into Bluetooth mode.
• The volume can be controlled as indicated in the Basic Operation above.
• Music playback can be controlled from the device or the speaker (if the
connected device supports commands through 3.5mm audio cable) by using the
Basic Operation instructions above.
4. Aux line out Operation
• Inserting a 3.5mm audio cable into the AUX line out port will bypass the audio
from the speaker to the device. This allows you to listen to Bluetooth on any
device connected into the AUX line out (Bluetooth audio pass through).
5. Charging Operation
• Connect the speaker to a laptop, computer, power bank, or power adapter with
the Micro USB cable included (5V/500mA) through the charging port. The LED
indicator will turn solid red while charging and will turn off when fully charged. If
using the speaker while charging the LED will be red and then blink purple while in
use.
• Please charge the battery fully before the first use of the speaker.
Technical parameter
Hands free functionality is only available in the Bluetooth mode and on mobile
phone that support the hands free Bluetooth profile.
Do not use the speaker in water.
Avoid using the speaker in extremely humid environments.
Avoid placing the speaker near strong magnets or strong magnetic fields.
LED indicators are as follows:
Quickly flashing blue: Bluetooth pairing mode
Slower flashing blue: Bluetooth mode (connected)
Solid blue: AUX line in mode
Solid red: Charging (in any mode)
BY SENTEY
Bluetooth
Stereo Speaker
USER MANUAL
1. Microphone
2. Previous track/volume down
3. Play/Pause/Answer phone
4. Next track /Volume up
5. On/Off Switch
6. Charging port (5V/Micro USB)
7. AUX line in
8. AUX line out
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65 7 8
Button Functionality & Diagram