Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your QFX CS-260 USB Powered Multimedia Speaker System. Please read this manual thoroughly before using the product to ensure proper function and to maximize your listening experience.
The QFX CS-260 is a 2.1 channel multimedia speaker system designed to deliver clear and powerful sound. It features multiple connectivity options including USB, Micro-SD, FM radio, and a 3.5mm AUX input, making it compatible with a wide range of multimedia devices. The system is conveniently powered directly from any standard USB port.
Package Contents
- QFX CS-260 Subwoofer Unit
- Two Satellite Speakers
- User Manual
Setup
1. Unpacking
- Carefully remove all components from the packaging.
- Inspect all items for any signs of damage. If any damage is found, do not use the product and contact customer support.
- Retain the packaging for future storage or transport.
2. Connections
Follow these steps to connect your speaker system:
- Connect the satellite speakers to the corresponding output ports on the subwoofer unit. Ensure a secure connection.
- For audio input, connect your multimedia device (e.g., smartphone, computer) to the 3.5mm AUX input port on the subwoofer using an audio cable (not included).
- Connect the USB power cable from the subwoofer unit to any available USB port on your computer, USB wall adapter, or power bank. The system is USB powered.

Image: The QFX CS-260 speaker system, showing the central subwoofer unit with control knobs and input ports, flanked by two smaller satellite speakers. The subwoofer features a USB port, Micro-SD card slot, and FM radio capability indicators.
Operating Instructions
1. Power On/Off
Once the USB power cable is connected, the system will power on automatically. There is no separate power button. Disconnect the USB cable to power off the system.
2. Volume Control
Rotate the 'VOL' knob on the front panel of the subwoofer unit clockwise to increase the volume and counter-clockwise to decrease it.
3. Bass Control
Rotate the 'BASS' knob on the front panel of the subwoofer unit to adjust the bass level according to your preference.
4. Input Modes
The CS-260 supports multiple audio input sources:
- AUX Input: Connect your audio device to the 3.5mm AUX input port. The system will automatically switch to AUX mode or can be selected using the mode button (if available, refer to device markings).
- USB Playback: Insert a USB flash drive containing MP3 audio files into the USB port. The system will automatically detect and begin playing the audio files.
- Micro-SD Playback: Insert a Micro-SD card containing MP3 audio files into the Micro-SD card slot. The system will automatically detect and begin playing the audio files.
- FM Radio: Press the 'MODE' button (if available) to switch to FM radio mode. Use the control buttons (e.g., Play/Pause, Next/Previous) to scan for and select radio stations.
Maintenance
Cleaning and Care
- Ensure the speaker system is disconnected from power before cleaning.
- Use a soft, dry cloth to wipe down the surfaces of the speakers.
- Do not use liquid cleaners, aerosols, or abrasive chemicals, as these may damage the finish or internal components.
- Keep the speakers away from direct sunlight, heat sources, and excessive moisture.
Troubleshooting
| Problem | Possible Solution |
|---|---|
| No sound |
|
| Distorted sound |
|
| FM radio not clear |
|
| USB/Micro-SD not playing |
|
Specifications
| Feature | Detail |
|---|---|
| Model Number | CS-260 |
| Speaker Type | 2.1 Channel Multimedia Speaker System |
| Power Source | USB Powered (DC) |
| Connectivity Technology | 3.5mm Auxiliary, USB, Micro-SD, FM Radio |
| Compatible Devices | Smartphones, Computers, MP3 Players, etc. |
| Product Dimensions | 2.5 x 5 x 4.75 inches (Subwoofer) |
| Item Weight | 10.9 ounces |
| Manufacturer | QFX USA |
| UPC | 606540029534 |
Warranty Information
QFX products are designed and manufactured to the highest quality standards. For specific warranty details, including duration and coverage, please refer to the warranty card included with your purchase or visit the official QFX website. Please retain your proof of purchase for any warranty claims.
Customer Support
If you encounter any issues or have questions regarding your QFX CS-260 speaker system that are not addressed in this manual, please contact QFX customer support. Contact information can typically be found on the QFX official website or on the product packaging.
Legal Disclaimer
WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov.
QFX requests that this information be provided to any online or other retailer that may sell this product, and require that they provide the internet warning as set forth above. QFX cannot be held responsible for any Proposition 65 action by the California Attorney General or private enforcer based on the failure to provide an internet warning. Please contact Irene Vargas if you have any questions.