1. Introduction
This manual provides instructions for the operation and maintenance of your Passau S225B Portable Bluetooth Speaker. This speaker is designed to deliver clear audio with dynamic RGB lighting, suitable for both indoor and outdoor environments.

Image: Two Passau S225B portable Bluetooth speakers, featuring a black base with the Passau logo and a clear top section that illuminates with vibrant RGB lights. A black wrist strap is visible on one speaker.
2. What's in the Box
Verify that all items are present in the package:
- 1 x Passau S225B Portable Bluetooth Speaker
- 1 x User Manual
- 1 x Charging Cable (Type-C)
Video: An unboxing demonstration of the Passau S225B Bluetooth Speaker, showing the contents of the package including the speaker, user manual, and charging cable.
3. Setup
3.1 Charging the Speaker
Before first use, fully charge the speaker. Connect the provided Type-C charging cable to the charging port on the speaker and a compatible USB power adapter (not included).

Image: A detailed view of the top section of the Passau S225B speaker, highlighting the Type-C charging port, a USB disk input, and the integrated handle for portability.
3.2 Powering On/Off
To power on the speaker, press and hold the power button located on the top panel. Repeat the action to power off the speaker.
3.3 Bluetooth Pairing
- Ensure the speaker is powered on and in pairing mode (indicated by a flashing LED light).
- On your device (smartphone, tablet, etc.), navigate to the Bluetooth settings.
- Select "S225B" from the list of available devices.
- Once connected, the LED light will become solid, and you will hear an audible confirmation.
Video: A demonstration of connecting the Passau S225B Bluetooth Speaker to a smartphone via Bluetooth, showcasing the pairing process and the speaker's RGB lighting effects.
3.4 True Wireless Stereo (TWS) Pairing
For enhanced stereo sound, two S225B speakers can be paired together:
- Ensure both speakers are powered on and not connected to any other Bluetooth device.
- Press the TWS pairing button on one speaker (this will be the primary speaker).
- The speakers will automatically search and connect to each other.
- Once paired, connect your device to the primary speaker via Bluetooth as described in section 3.3.

Image: Two Passau S225B speakers shown wirelessly connected, illustrating the True Wireless Stereo (TWS) pairing feature. The speakers display vibrant RGB lights, and musical notes emanate from them, with people enjoying music in a social setting in the background.
4. Operating Instructions
4.1 Audio Playback
- Play/Pause: Press the Play/Pause button once.
- Volume Up: Press the '+' button.
- Volume Down: Press the '-' button.
- Next Track: Press and hold the '+' button.
- Previous Track: Press and hold the '-' button.
4.2 RGB Light Show
The speaker features dynamic RGB lighting with multiple modes:
- Press the light mode button (often integrated with the power button or a dedicated button) to cycle through different lighting effects.
- Available modes typically include breathing, streaming, stay color, and flash.

Image: The Passau S225B speaker showcasing its RGB lighting capabilities, accompanied by an infographic detailing 7 color options and 4 distinct lighting modes: Breathing, Streaming, Stay Color, and Flash.
4.3 Portability
The speaker is designed for portability with a built-in wristband. It can be easily carried or attached to bags and bikes.

Image: The Passau S225B speaker being held, demonstrating its compact and portable design. Smaller inset images show the speaker in various outdoor settings, including attached to a bicycle, clipped to a backpack, and placed next to a person relaxing outdoors, highlighting its versatility.
5. Maintenance
- Clean the speaker with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Avoid exposing the speaker to extreme temperatures or direct sunlight for prolonged periods.
- Ensure the charging port cover is securely closed when not charging to maintain water resistance.
- Store the speaker in a cool, dry place when not in use.
6. Troubleshooting
| Problem | Solution |
|---|---|
| Speaker does not power on. | Ensure the speaker is fully charged. Connect to a power source using the Type-C cable. |
| Cannot pair via Bluetooth. |
|
| No sound or low volume. |
|
| TWS pairing fails. |
|
7. Specifications
| Feature | Detail |
|---|---|
| Model Name | S225B |
| Brand | Passau |
| Connectivity Technology | Bluetooth 5.4 |
| Speaker Type | Portable Speaker |
| Audio Output Mode | Stereo (with TWS pairing) |
| Speaker Maximum Output Power | 15W (single), 30W (TWS paired) |
| Special Features | Bass Boost, Hi-Res Audio, LED Light, Portable, Stereo Pairing |
| Product Dimensions | 3.3"D x 5.7"W x 3.3"H |
| Item Weight | 1.14 Kilograms (approx. 2.51 pounds) |
| Material | Plastic |
| Indoor/Outdoor Usage | Indoor, Outdoor |
| UPC | 758077873316 |

Image: The Passau S225B speaker positioned outdoors on a wooden table next to a soda can, illustrating its compact size and highlighting its "Compact & All-Day Playtime" feature with a "24h" overlay, suggesting extended battery life.
8. Warranty and Support
Once purchased, you are a valued customer entitled to lifetime after-sales service. Should you have any queries or require technical assistance, please contact us via Amazon messages or refer to the contact information provided in the user manual included with your product.
For further information or support, please visit the official Passau store: Passau Store on Amazon.