Introduction
Thank you for purchasing the VIGROS Skull Speaker. This portable Bluetooth mini speaker combines unique design with clear audio, making it suitable for various uses. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your device. Please read these instructions carefully before use.

The VIGROS Skull Speaker in Mini-Red, featuring a unique skull design with integrated speakers in the 'sunglasses' area.
Package Contents
Ensure all items are present in your package:
- VIGROS Skull Speaker (Mini-Red)
- USB Charging Cable
- Wrist Strap
- User Manual (this document)

Included accessories: the red skull speaker, a USB charging cable, and a wrist strap for portability.
Setup
1. Charging the Speaker
- Locate the Micro USB charging port on the back of the speaker.
- Connect the provided USB charging cable to the speaker's charging port.
- Connect the other end of the USB cable to a compatible USB power source (e.g., wall adapter, computer USB port, power bank).
- The LED light on the back of the speaker will indicate charging status. It will typically turn off or change color once fully charged.
Note: For optimal battery life, fully charge the speaker before first use.

The rear panel of the speaker, featuring the Micro USB charging port, TF card slot, USB port, and AUX input.
2. Powering On/Off
- To power on, press and hold the power button (usually located near the charging port) until you hear an audible cue or see the LED indicator light up.
- To power off, press and hold the power button again until the speaker powers down.
Operating Instructions
1. Bluetooth Pairing
- Ensure the speaker is powered on and in Bluetooth pairing mode (indicated by a flashing LED light, often blue).
- On your device (smartphone, tablet, laptop), enable Bluetooth and search for available devices.
- Select "SKULL" or a similar name from the list of devices.
- Once paired, the speaker will emit an audible confirmation, and the LED light will become solid.
- You can now play audio from your device through the VIGROS Skull Speaker.

The VIGROS Skull Speaker demonstrating Bluetooth connectivity with a smartphone and laptop.
2. Volume Control
- The volume can be adjusted directly on the speaker using the touch controls located on the forehead area.
- Alternatively, you can control the volume from your connected Bluetooth device.
3. TWS (True Wireless Stereo) Function
For an enhanced stereo experience, you can pair two VIGROS Skull Speakers together:
- Ensure both skull speakers are powered on and not connected to any other Bluetooth device.
- On one speaker, double-press the power button (or a dedicated TWS button if available, refer to packaging for specific button functions).
- The speakers will search for each other and automatically pair. You will hear a confirmation tone.
- Once paired, connect your device to one of the speakers via Bluetooth as described above. Audio will now play in stereo through both speakers.

Two VIGROS Skull Speakers paired together for a True Wireless Stereo experience.
4. Other Playback Options (TF Card, USB, AUX)
The speaker supports multiple input methods:
- TF Card: Insert a TF (MicroSD) card with your audio files into the designated slot on the back of the speaker. The speaker will automatically switch to TF card playback.
- USB: Insert a USB flash drive with audio files into the USB port. The speaker will automatically switch to USB playback.
- AUX Input: Connect an audio device using a 3.5mm AUX cable to the AUX port on the back of the speaker.
Maintenance
- Clean the speaker with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Keep the speaker away from water and moisture, as it is not waterproof.
- Store the speaker in a cool, dry place when not in use.
- Avoid dropping or subjecting the speaker to strong impacts.
Battery Care
- To prolong battery life, avoid fully discharging the speaker frequently.
- If the speaker will not be used for an extended period, charge it to about 50% before storing.
- Important: The speaker is designed for portable use. Continuous operation while plugged in may not extend playtime once the battery is low, and it may require a full charge cycle to resume normal operation.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not turn on. | Low battery. | Charge the speaker using the provided USB cable. |
| Cannot pair via Bluetooth. | Speaker not in pairing mode; device Bluetooth off; too far from device. | Ensure speaker is on and in pairing mode. Turn on Bluetooth on your device. Move speaker closer to device (within 10 meters). |
| No sound or low volume. | Volume too low on speaker or device; incorrect input mode. | Increase volume on both speaker and connected device. Check if the correct input mode (Bluetooth, TF, USB, AUX) is selected. |
| TWS pairing fails. | Speakers already connected to another device; incorrect pairing procedure. | Disconnect both speakers from any other Bluetooth devices. Follow the TWS pairing steps carefully. |
| Speaker turns off unexpectedly. | Low battery. | Recharge the speaker. |
Specifications
| Brand | VIGROS |
| Model Number | B0939VQL75 |
| Color | Red |
| Material | Plastic |
| Product Dimensions | 3"D x 3"W x 4"H |
| Item Weight | 167 Grams (5.9 ounces) |
| Wireless Technology | Bluetooth 5.0 |
| Bluetooth Range | Up to 10 Meters |
| Speaker Type | Surround Sound |
| Audio Output Mode | Stereo, Surround |
| Speaker Maximum Output Power | 3 Watts |
| Frequency Response | 20 KHz |
| Power Source | Battery Powered (1 Lithium Ion battery included) |
| Control Method | Touch |
| Waterproof | No |
| Compatible Devices | Smartphones, Tablets, PCs, MP3/MP4 Players (e.g., iPhone, Samsung, Huawei, OPPO) |
| Input Ports | Micro USB (charging), TF Card, USB, AUX (3.5mm) |
Product Videos
Mini Skull Speaker Overview
This video provides a quick overview of the Mini Skull Speaker in red, highlighting its design and function as a music companion and decoration.
Skull Mini Portable Bluetooth Speakers: Get Ready To Rock
A short video showcasing the VIGROS Skull Mini Portable Bluetooth Speaker, emphasizing its readiness for music playback.
Warranty and Support
The VIGROS Skull Speaker comes with a Limited Warranty. For details regarding warranty coverage, terms, and conditions, please refer to the product packaging or contact VIGROS customer support through their official website or the retailer where the product was purchased.
For further assistance or inquiries, please visit the VIGROS official website or contact their customer service department.