Portronics Decibel 20 — Complete Guide

Modified on Fri, 23 Oct at 3:07 PM

TABLE OF CONTENTS


Product Overview

The Portronics Decibel 20 is a 16W wireless soundbar with Bluetooth, LED indicators, hands-free calling and multiple playback options. It supports Bluetooth, USB flash drive, Micro SD card, FM radio and 3.5mm AUX playback. It also supports TWS pairing with a second Decibel 20 speaker.

Quick Reference

FeatureDetails
ProductPortronics Decibel 20
Product CodePOR 1734
Audio Output16W
Bluetooth5.0
Wireless RangeUp to 10 metres
Frequency Range40Hz–20kHz
Channel Separation35dB
Battery1800mAh lithium-polymer
Playback ModesBluetooth, FM, USB, Micro SD and AUX
TWSSupported
LED IndicatorsYes
Playtimeup to 5 hours
Charging TimeApproximately 2.5 hours



What's in the Box


ItemQuantity
Decibel 20 Soundbar1
Charging Cable1
User Manual1

Controls & Indicators

Control / FeatureFunction
Power / Mode ButtonTurns the soundbar on/off and switches playback mode
Play/Pause ButtonPlay/pause, answer/end calls, reject calls and start FM channel scanning
“+” ButtonNext track; long-press to increase volume
“−” ButtonPrevious track; long-press to decrease volume
Charging PortConnects the charging cable
AUX PortConnects a compatible wired audio source
USB PortPlays supported audio from a USB flash drive
Micro SD SlotPlays supported audio from a Micro SD card
LED IndicatorShows Bluetooth pairing, connection, power and charging status

Powering On and Off

  • Power ON: Press and hold the Power Button for about 3 seconds. The LED indicator turns on.
  • Power OFF: Press and hold the Power Button for about 2 seconds.
  • The manual states that the speaker may turn off automatically if it is not receiving a Bluetooth signal.

Bluetooth Pairing

  1. Turn on the Decibel 20.
  2. Enable Bluetooth on your phone, tablet, laptop or other compatible device.
  3. Search for Decibel 20 in the available Bluetooth devices.
  4. Select Decibel 20 to connect.
  5. Once connected, start playing audio on your device.

The LED flashing quickly during pairing and staying blue during normal playback. The wireless range is up to approximately 10 metres in suitable conditions.

Switching Playback Modes

Short-press the Mode Button to select the mode you want. The soundbar supports:

  • Bluetooth
  • FM radio
  • USB flash drive
  • Micro SD card
  • AUX input

If audio does not play, check that the selected mode matches the connected source.

Music and Volume Controls

ActionControl
Play / PauseShort-press Play/Pause
Next TrackShort-press “+”
Previous TrackShort-press “−”
Volume UpPress and hold “+”
Volume DownPress and hold “−”

Hands-Free Calling

The soundbar supports phone calls while connected over Bluetooth.

ActionControl
Answer an incoming callShort-press Play/Pause
End a callShort-press Play/Pause
Reject an incoming callPress and hold Play/Pause for about 2 seconds

Call audio and microphone performance may vary depending on the connected phone and the surrounding environment.

USB Playback

  1. Insert a USB flash drive with supported music files into the USB port.
  2. Short-press the Mode Button to select USB mode if playback does not start automatically.
  3. Use the playback controls to manage your music.

Micro SD Playback

  1. Insert a Micro SD card containing supported music files.
  2. The speaker should begin playback automatically or when Micro SD mode is selected.
  3. If playback does not start, remove and reinsert the card and check that the files are supported.

AUX Playback

  1. Connect a compatible 3.5mm AUX cable from the soundbar to your phone, computer or other audio source.
  2. Select AUX mode using the Mode Button if needed.
  3. Start playback on the connected device.

FM Radio

Connect the charging cable to the charging port so it can act as an antenna and improve FM reception.

  1. Connect the cable to the soundbar's charging port.
  2. Turn on the soundbar.
  3. Short-press the Mode Button to select FM mode.
  4. Short-press Play/Pause to start automatic channel scanning.
  5. Wait for scanning to finish, then use the track controls to move between available stations.

Keep the cable connected during FM use for better reception.

TWS Stereo Pairing

TWS lets two Decibel 20 speakers play together for a stereo listening experience.

  1. Turn Bluetooth off on your phone or disconnect it from the first speaker.
  2. Turn on both Decibel 20 speakers.
  3. Press and hold the Power Button on one speaker to start TWS pairing, as described in the manual.
  4. Wait for the speakers to connect. The manual indicates a blue LED flash on both speakers after successful pairing.
  5. Turn Bluetooth on on your phone and connect to Decibel 20.
  6. Start playback.

Important: TWS pairing is only guaranteed to work reliably between two Decibel 20 units from the same production batch. Pairing speakers from different batches may fail or behave inconsistently. Check the batch/date code on both units if TWS pairing doesn't work.

Charging

  1. Connect the supplied charging cable to the soundbar's charging port.
  2. Connect the other end to a suitable USB power source.
  3. Allow sufficient time for charging before use.

Care & Safety

  • Place the soundbar on a stable surface.
  • Keep the product away from water, moisture and excessive heat.
  • Keep the charging port clean and dry.
  • Do not use a damaged cable or force a connector into the port.
  • Turn the soundbar off when it is not in use.
  • Do not attempt to repair or dismantle a defective unit yourself.
  • Avoid prolonged listening at maximum volume.

Still stuck?

If the issue persists after performing all troubleshooting steps, please raise a support request.

Our support team will assist you further.

Support

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