1. Introduction
Thank you for choosing the STF Dune Wireless On-Ear Headphones. This manual provides essential information for the safe and efficient use of your headphones. Please read it carefully before use and retain it for future reference.
Package Contents
- 1 x STF Dune Wireless On-Ear Headphones
- 1 x Auxiliary Audio Cable (3.5mm)
- 1 x USB Type-C Charging Cable
- 1 x User Manual
Image: The retail packaging for the STF Dune Wireless On-Ear Headphones, showing the headphones and branding.
2. Safety Information
- Do not expose the headphones to extreme temperatures, humidity, or corrosive environments.
- Avoid dropping or subjecting the headphones to strong impacts.
- Do not disassemble or attempt to repair the headphones yourself. Contact qualified service personnel.
- Keep out of reach of children.
- Prolonged listening at high volume levels may cause hearing damage. Adjust volume to a safe level.
- Use only the provided charging cable or a certified equivalent.
3. Product Overview
Familiarize yourself with the components of your STF Dune headphones:
Image: Side view of the STF Dune headphones, highlighting the control buttons and ports on the left earcup.
Image: Front view of the STF Dune headphones, showcasing the overall design.
Image: Side profile of the STF Dune headphones, showing the adjustable headband.
Image: Angled view of the STF Dune headphones, displaying the earcups and headband.
Image: Right side view of the STF Dune headphones, showing the smooth earcup exterior.
4. Setup
4.1 Charging the Headphones
Before first use, fully charge your headphones.
- Connect the USB Type-C charging cable to the charging port on the headphones.
- Connect the other end of the cable to a USB power source (e.g., computer USB port, wall adapter 5Vcc 1A).
- The indicator light will show charging status (e.g., red for charging, off or blue for fully charged).
- A full charge provides approximately 8 hours of usage.
Image: Close-up of the STF Dune headphones showing the USB Type-C charging port.
4.2 Pairing via Bluetooth
To connect your headphones wirelessly:
- Ensure the headphones are charged and powered off.
- Press and hold the Power button until the indicator light flashes blue and red, indicating pairing mode.
- On your device (smartphone, tablet, laptop), enable Bluetooth and search for available devices.
- Select "STF Dune" from the list of devices.
- Once connected, the indicator light will flash blue slowly or remain solid blue.
- The wireless range is approximately 10 meters (33 feet).
4.3 Wired Connection (3.5mm Aux)
You can use the headphones with a wired connection even if the battery is depleted.
- Connect one end of the 3.5mm auxiliary audio cable to the audio input port on the headphones.
- Connect the other end of the cable to the 3.5mm audio output jack of your device.
- The headphones will automatically switch to wired mode.
Image: Close-up of the STF Dune headphones showing the 3.5mm auxiliary audio input port.
4.4 MicroSD Card Usage
The headphones support MicroSD card playback for direct music listening.
- Insert a MicroSD card (pre-loaded with audio files) into the MicroSD card slot on the headphones.
- The headphones will automatically detect the card and begin playing music.
- Use the control buttons to manage playback.
5. Operating Instructions
The STF Dune headphones feature intuitive controls for various functions.
| Button/Action | Function |
|---|---|
| Power Button (Long Press) | Power On/Off |
| Power Button (Short Press) | Play/Pause music, Answer/End call |
| Volume Up (+) | Increase Volume (short press), Next Track (long press) |
| Volume Down (-) | Decrease Volume (short press), Previous Track (long press) |
| Mode Button (M) | Switch between Bluetooth, MicroSD, and Aux modes |
| Incoming Call | Short press Power button to Answer, Long press to Reject |
6. Maintenance
6.1 Cleaning
- Wipe the headphones with a soft, dry, lint-free cloth.
- Do not use abrasive cleaners, alcohol, or chemical solvents.
- Avoid getting moisture into any openings.
6.2 Storage
- Store the headphones in a cool, dry place away from direct sunlight.
- Avoid storing in areas with extreme temperatures or high humidity.
- If storing for an extended period, charge the headphones periodically to maintain battery health.
7. Troubleshooting
| Problem | Solution |
|---|---|
| Headphones do not power on. | Ensure the headphones are charged. Connect to a power source using the USB Type-C cable. |
| Cannot pair via Bluetooth. |
|
| No sound in wireless mode. |
|
| No sound in wired mode. |
|
| Microphone not working. |
|
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | Dune |
| Brand | STF |
| Connection Technology | Wireless (Bluetooth 5.1), Wired (3.5mm Aux) |
| Bluetooth Version | 5.1 |
| Wireless Range | Up to 10 meters (33 feet) |
| Speaker Diameter | 40 mm |
| Frequency Range | 20 Hz - 20 kHz |
| Impedance | 32 Ohms |
| Sound Pressure (dBSPL) | 95 dB |
| Charging Input | Type-C, 5 Vcc 1 A |
| Battery Capacity | 200 mAh |
| Usage Time | Up to 8 hours |
| Microphone | Integrated |
| Audio Input | 3.5 mm (Aux) |
| Memory Input | MicroSD |
| Ear Placement | On-Ear (Supraaural) |
| Control Method | Remote Control |
| Noise Control | Acoustic Isolation |
| Compatible Devices | Mobile phones, Tablets, Laptops, Televisions |
9. Warranty and Support
The STF Dune Wireless On-Ear Headphones come with a 1-year warranty from the date of purchase. This warranty covers manufacturing defects under normal use.
The warranty does not cover damage caused by:
- Accident, abuse, misuse, or improper operation.
- Unauthorized repair or modification.
- Failure to follow operating instructions.
For warranty claims or technical support, please contact STF customer service. Refer to the official STF website or your purchase documentation for contact information.
Manufacturer: Stuffactory
