Introduction
This manual provides instructions for the operation and maintenance of your Tecsun B5 Wireless Bluetooth Speaker. Please read this manual thoroughly before use to ensure proper functionality and to maximize your listening experience.
Product Overview
Key Features
- Hi-Fi digital music player supporting WAV, MP3, WMA, AAC, M4A, FLAC lossless formats via TF card.
- FM stereo radio (87.0-108MHz).
- Bluetooth 2.4 GHz receiver for streaming from phones or computers.
- Mobile phone hands-free function via Bluetooth.
- 3D sound effect.
- Auto shut-off timer (1-60 minutes).
- Touch buttons with backlight for night operation.
- RCA and USB jacks for versatile connectivity.
- Nominal output power: 5W×2.
- Built-in rechargeable 7.4V 2200mAh Lithium battery.
- Compact dimensions: 13.1 x 3.9 x 3.5 inches (333 x 100 x 90 mm).
- Weight: 40.6 oz (1.15 kg).
Package Contents
- 1 x Tecsun B5 Wireless Bluetooth Speaker
- 1 x DC Adapter
- 1 x Lithium Battery (installed)
- 1 x USB Cable
- 1 x FM External Antenna
- 1 x Carrying box
- 1 x User Manual
Product Components







Setup
Charging the Battery
Connect the provided DC adapter to the DC 9V input port on the speaker and plug it into a power outlet. The battery indicator on the display will show charging status. A full charge typically takes several hours.
Connecting the FM External Antenna
For improved FM radio reception, connect the supplied external FM antenna to the dedicated antenna jack on the rear of the speaker.
Powering On/Off
Locate the main power switch on the rear of the speaker. Slide it to the "ON" position to power on the device. Slide it to "OFF" to power off.
Operating Instructions
General Controls
The Tecsun B5 features a touch-sensitive control panel with backlight.
- VOL - / VOL +: Adjusts the volume level.
- Play/Pause: Plays or pauses audio playback.
- Previous / Next: Skips to the previous or next track/station.
- Hands-free: Answers or ends phone calls when connected via Bluetooth.
- Mode Button: Cycles through available modes (Bluetooth, FM, MP3, Line-in).
- Sleep Radio preset / Single repeat: Activates sleep timer or sets repeat mode for MP3 playback.
- Surround sound: Toggles 3D sound effect.
Bluetooth Mode
- Power on the speaker.
- Press the Mode button until "Bluetooth" is displayed. The Bluetooth indicator will flash.
- On your mobile device or computer, enable Bluetooth and search for "Tecsun B5".
- Select "Tecsun B5" to pair. Once paired, the Bluetooth indicator will stop flashing and remain solid.
- You can now stream audio from your device to the speaker.
- For hands-free calls, press the Hands-free button to answer or end a call.
FM Radio Mode
- Power on the speaker and ensure the external FM antenna is connected.
- Press the Mode button until "FM" is displayed.
- Use the Previous / Next buttons to manually tune to a station or press and hold them for automatic scanning.
- To save a station, refer to the specific instructions in the original manual.
MP3 Player Mode (TF Card)
- Insert a TF (microSD) card containing supported audio files (WAV, MP3, WMA, AAC, M4A, FLAC) into the TF card slot.
- Press the Mode button until "MP3" or "Card" mode is displayed.
- The speaker will automatically begin playing music from the card.
- Use Play/Pause, Previous, and Next buttons to control playback.
- Press the "Single repeat" button to toggle repeat modes.
Line-in Mode (External Audio Input)
- Connect an external audio source (e.g., computer, TV, CD player) to the "Computer Audio Input" (3.5mm jack) or the "LINE IN" (RCA) ports on the speaker using an appropriate audio cable.
- Press the Mode button until "Line-in" or "AUX" is displayed.
- Audio from the connected device will now play through the speaker.
3D Sound Effect
Press the "Surround sound" button on the control panel to activate or deactivate the 3D sound effect. This feature enhances the audio experience.
Auto Shut-off (Sleep Timer)
Press the "Sleep Radio preset" button to set the auto shut-off timer. Cycle through the available time settings (1-60 minutes) to automatically power off the speaker after a set duration.
Maintenance
Cleaning
Use a soft, dry cloth to clean the speaker's surface. Do not use abrasive cleaners or solvents.
Battery Care
To prolong battery life, fully charge the speaker before first use and when not in use for extended periods. Avoid exposing the battery to extreme temperatures.
Storage
Store the speaker in a cool, dry place away from direct sunlight and moisture.
Troubleshooting
No Power
- Ensure the main power switch on the rear is in the "ON" position.
- Check if the DC adapter is properly connected and plugged into a working power outlet.
- Verify the battery is charged.
No Sound
- Increase the volume on both the speaker and the connected audio source.
- Ensure the correct mode (Bluetooth, FM, MP3, Line-in) is selected.
- Check audio cable connections for Line-in mode.
- For Bluetooth, ensure the device is properly paired and connected.
Poor FM Reception
- Ensure the external FM antenna is connected and properly extended.
- Adjust the position of the speaker or antenna for better signal.
- Move away from sources of interference (e.g., other electronic devices).
Bluetooth Pairing Issues
- Ensure the speaker is in Bluetooth pairing mode (indicator flashing).
- Disable and re-enable Bluetooth on your device.
- Remove "Tecsun B5" from your device's paired list and attempt to pair again.
- Ensure the speaker is within the effective Bluetooth range (typically 10 meters).
Specifications
| Feature | Detail |
|---|---|
| Brand | TECSUN |
| Speaker Maximum Output Power | 5 watts x 2 |
| Connectivity Technology | Bluetooth, USB |
| Audio Output Mode | Stereo |
| Mounting Type | Tabletop Mount |
| Speaker Type | 3D, Computer |
| Additional Features | Rechargeable |
| Control Method | Touch |
| Controller Type | Battery Powered |
| Item Weight | 3 pounds (1.36 kg) |
| Power Source | Battery Powered |
| Number of Batteries | 1 Lithium Ion (7.4V 2200mAh) |
| Model Number | B5 |
| Manufacturer | Tecsun |
| Connectivity Protocol | Bluetooth |
| Frequency Range | 50Hz~18kHz |
| Speaker | 2.25", 4 / 8W |
| Power Supply | 9V DC (adapter included); Current 1.5A |
| Dimensions | 13.1 x 3.9 x 3.5 inches (333 x 100 x 90 mm) |
Warranty and Support
For warranty information and technical support, please refer to the documentation included with your purchase or visit the official TECSUN website.
You can also visit the TECSUN Store on Amazon for more product information.
