1. Introduction
Thank you for choosing the Vieta Pro Thunder 2 Portable Bluetooth Speaker. This manual provides essential information for the safe and efficient use of your device. Please read it thoroughly before operation and retain it for future reference.

Image 1.1: Vieta Pro Thunder 2 Portable Bluetooth Speaker. This image shows the speaker from a front-side angle, highlighting its cylindrical shape, integrated handle, and illuminated LED rings on the front.
2. Safety Information
- Do not expose the speaker to extreme temperatures or direct sunlight for extended periods.
- Avoid dropping or subjecting the speaker to strong impacts.
- Keep the speaker away from medical devices, as it may interfere with their operation.
- Do not attempt to disassemble, repair, or modify the speaker yourself. Contact qualified service personnel.
- Ensure all port covers are securely closed when using the speaker near water to maintain its IPX6 water resistance.
3. Package Contents
Verify that all items are present in the package:
- Vieta Pro Thunder 2 Portable Bluetooth Speaker
- USB-C Charging Cable
- Quick Start Guide

Image 3.1: Package contents including the Vieta Pro Thunder 2 speaker, its retail box, and a USB-C charging cable.
4. Product Overview
4.1. Features
- 150W Peak Power: Delivers powerful and clear audio.
- Bluetooth 5.3: For stable and efficient wireless connectivity.
- Up to 24 Hours Battery Life: Extended playback on a single charge.
- True Wireless Stereo (TWS): Pair two Thunder 2 speakers for stereo sound.
- IPX6 Water Resistance: Protected against powerful water jets.
- Integrated Microphone: For hands-free calls.
- Multiple Connectivity Options: USB Player, USB-C, Aux-In, Microphone Jack.
- RGB LED Lights: Dynamic lighting effects to enhance your audio experience.

Image 4.1: Visual representation of the Vieta Pro Thunder 2's key features, including 150W power, Bluetooth 5.3, 24-hour battery, TWS, IPX6 water resistance, USB playback, USB-C charging, RGB LED, and integrated microphone.
4.2. Controls and Ports
Familiarize yourself with the speaker's control buttons and connection ports.

Image 4.2: Top view of the Vieta Pro Thunder 2 speaker, showing the control panel with buttons for LED modes, equalizer, volume down, play/pause, volume up, TWS pairing, and power.
- Light Button: Cycles through LED light modes.
- EQ Button: Adjusts equalizer settings.
- Volume Down (-): Decreases volume.
- Play/Pause (►): Plays or pauses audio.
- Volume Up (+): Increases volume.
- TWS Button: Initiates True Wireless Stereo pairing.
- Power Button: Turns the speaker on/off.

Image 4.3: Close-up view of the side panel of the Vieta Pro Thunder 2 speaker, revealing the USB-C charging port, USB-A port for media playback, 3.5mm Aux-In jack, and microphone input jack, all protected by a rubber flap.
- USB-C Port: For charging the speaker.
- USB-A Port: For playing audio from a USB drive.
- AUX-IN (3.5mm) Port: For wired audio connection.
- MIC (6.35mm) Port: For connecting an external microphone.
5. Setup
5.1. Charging the Speaker
Before first use, fully charge the speaker. Connect the supplied USB-C cable to the speaker's USB-C port and the other end to a compatible USB power adapter (not included).
- The LED indicator will show charging status.
- A full charge takes approximately 5 hours.
- The speaker offers up to 24 hours of playback on a full charge, depending on volume and usage.
5.2. Power On/Off
- To Power On: Press and hold the Power button for 2-3 seconds.
- To Power Off: Press and hold the Power button for 2-3 seconds.
5.3. Bluetooth Pairing
- Ensure the speaker is powered on and in Bluetooth pairing mode (the LED indicator will flash).
- On your mobile device, enable Bluetooth and search for available devices.
- Select "Vieta Pro Thunder 2" from the list.
- Once paired, the speaker will emit a confirmation sound, and the LED indicator will stop flashing.
5.4. True Wireless Stereo (TWS) Pairing
To achieve a true stereo sound experience, you can pair two Vieta Pro Thunder 2 speakers together.

Image 5.1: Graphic illustrating the 'Dual Pair' or True Wireless Stereo (TWS) functionality, showing two speakers wirelessly connected for a stereo audio experience.
- Ensure both Thunder 2 speakers are powered on and not connected to any Bluetooth device.
- On one speaker (this will be the primary speaker), press the TWS button. The speaker will enter TWS pairing mode.
- The primary speaker will automatically search for and connect to the second Thunder 2 speaker.
- Once successfully paired, both speakers will emit a confirmation sound.
- Now, connect your mobile device to the primary speaker via Bluetooth as described in section 5.3. Audio will play in stereo through both speakers.
6. Operating Instructions
6.1. Audio Playback
The Thunder 2 speaker supports multiple audio input sources:
- Bluetooth: After successful pairing, play audio from your connected device.
- USB Playback: Insert a USB flash drive into the USB-A port. The speaker will automatically detect and play compatible audio files.
- AUX-IN: Connect an audio device using a 3.5mm audio cable (not included) to the AUX-IN port. The speaker will switch to AUX mode.
6.2. Microphone Usage
Connect a 6.35mm microphone to the MIC port for karaoke or public address functions. Adjust microphone volume from the connected microphone or source device if applicable.
6.3. LED Light Modes
Press the Light button to cycle through various RGB LED light modes. This feature enhances the visual experience of your music.

Image 6.1: Close-up of the Vieta Pro Thunder 2 speaker's front, showcasing the vibrant RGB LED lights around the speaker grille, illuminating in purple and green hues.
6.4. Volume Control
Use the Volume Up (+) and Volume Down (-) buttons on the speaker to adjust the playback volume. You can also control the volume from your connected device.
6.5. Equalizer Settings
Press the EQ button to cycle through preset equalizer modes, optimizing the sound for different music genres or preferences.
7. Maintenance
- Clean the speaker with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Ensure all port covers are sealed when cleaning or when the speaker is exposed to water.
- Store the speaker in a cool, dry place when not in use for extended periods.
- Charge the battery at least once every three months to prolong its lifespan.

Image 7.1: The Vieta Pro Thunder 2 speaker being splashed with water, demonstrating its IPX6 water resistance.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Low battery. | Charge the speaker fully. |
| Cannot pair via Bluetooth. | Speaker not in pairing mode; device too far; previously connected to another device. | Ensure speaker is in pairing mode. Move device closer. Disconnect from other devices. |
| No sound. | Volume too low; incorrect input source; cable not connected properly. | Increase volume. Select correct input mode (Bluetooth, USB, AUX). Check cable connections. |
| TWS pairing fails. | Speakers already connected to other devices; speakers too far apart. | Ensure both speakers are disconnected from other devices. Place speakers closer together. |
9. Specifications
| Feature | Specification |
|---|---|
| Model Name | Thunder 2 |
| Model Number | VM-BS110BK |
| Speaker Output Power | 150 Watts (Peak) |
| Connectivity Technology | Bluetooth 5.3 |
| Water Resistance Rating | IPX6 |
| Battery Life | Up to 24 hours (varies with usage) |
| Charging Port | USB-C |
| Audio Inputs | Bluetooth, USB-A, 3.5mm AUX-IN, 6.35mm MIC |
| Dimensions (L x W x H) | 53 x 32 x 25 cm |
| Weight | 7 kg |
| Frequency Response | 60.2 Hz |
10. Warranty and Support
For warranty information and customer support, please refer to the warranty card included with your product or visit the official Vieta Pro website. You may also contact your local retailer for assistance.







