STF Katu Cat Ear Headphones User Manual

1. Introduction

This manual provides instructions for the proper use and maintenance of your STF Katu Cat Ear Headphones. Please read this manual thoroughly before operating the device to ensure optimal performance and longevity.

2. Product Features

Cat Ear Design with LED Lights: Integrated LED lights on the cat ears for visual appeal.
Integrated Microphone: Allows for hands-free calling.
MicroSD Card Reader: Supports MP3 playback directly from a MicroSD card.
Dual Connectivity: Operates wirelessly via Bluetooth or wired using a 3.5mm audio cable.
Rechargeable Battery: Provides up to 4 hours of usage on a full charge.
On-Ear Design: Comfortable supraaural fit.

Diagram showing STF Katu headphone features — Figure 2.1: Key features of the STF Katu Cat Ear Headphones, including wireless audio, rechargeable battery, microphone, LED lights, Micro SD reader, and dual function.

3. Package Contents

Verify that all items are present in the package:

STF Katu Cat Ear Headphones
USB Charging Cable
3.5mm Audio Cable
User Manual

4. Setup

4.1 Charging the Headphones

Connect the small end of the USB charging cable to the charging port on the headphones.
Connect the larger end of the USB charging cable to a USB power source (e.g., computer USB port, USB wall adapter).
The LED indicator will illuminate during charging and turn off or change color when fully charged.
A full charge typically takes approximately 2-3 hours.

4.2 Powering On/Off

To Power On: Press and hold the Power button for approximately 3 seconds until the LED indicator lights up and an audible prompt is heard.
To Power Off: Press and hold the Power button for approximately 3 seconds until the LED indicator turns off and an audible prompt is heard.

4.3 Bluetooth Pairing

Ensure the headphones are powered off.
Press and hold the Power button for approximately 5-7 seconds until the LED indicator flashes red and blue alternately, indicating pairing mode.
On your device (smartphone, tablet, computer), enable Bluetooth and search for available devices.
Select "STF Katu" from the list of devices.
Once paired, the LED indicator will flash blue slowly, and an audible confirmation will be heard.

5. Operating Instructions

5.1 Audio Playback (Bluetooth Mode)

After successful Bluetooth pairing, open your device's music player and begin playback.
Play/Pause: Press the Multi-function button (usually the Power 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.

5.2 MicroSD Card Playback (MP3 Player)

Insert a MicroSD card (pre-loaded with MP3 audio files) into the MicroSD card slot on the headphones.
The headphones will automatically switch to MP3 playback mode.
Use the Play/Pause, Volume, and Track navigation buttons as described in Section 5.1.

5.3 Wired Mode (3.5mm Audio Cable)

Connect one end of the 3.5mm audio cable to the audio input jack on the headphones.
Connect the other end of the 3.5mm audio cable to the audio output jack of your device.
The headphones will automatically switch to wired mode. Bluetooth functionality will be disabled.
Audio playback is controlled directly from your connected device in wired mode.

5.4 LED Lights Control

The LED lights on the cat ears can be toggled on or off by a dedicated button (refer to the product diagram for exact location) or by a specific press combination of the Multi-function button.

Person wearing STF Katu cat ear headphones with LED lights on — Figure 5.1: A user wearing the STF Katu Cat Ear Headphones, demonstrating the illuminated cat ear feature.

5.5 Making and Receiving Calls

Ensure the headphones are connected via Bluetooth to your smartphone.
Answer Call: Press the Multi-function button once when a call comes in.
End Call: Press the Multi-function button once during a call.
Reject Call: Press and hold the Multi-function button for approximately 2 seconds when a call comes in.
Redial Last Number: Double-press the Multi-function button.

6. Maintenance

Cleaning: Use a soft, dry cloth to clean the headphones. Do not use abrasive cleaners or solvents.
Storage: Store the headphones in a cool, dry place away from direct sunlight and extreme temperatures. When not in use, folding the headphones can save space.
Battery Care: To prolong battery life, avoid fully discharging the headphones frequently. Charge them regularly, even if not in constant use.

STF Katu cat ear headphones folded for storage — Figure 6.1: The STF Katu Cat Ear Headphones folded, illustrating their compact design for storage and transport.

7. Troubleshooting

Problem	Possible Cause	Solution
Headphones do not power on	Low battery	Charge the headphones fully.
No sound in Bluetooth mode	Not paired, out of range, volume too low	Ensure headphones are paired and within 10 meters of the device. Increase volume on both headphones and device.
Cannot connect via Bluetooth	Headphones not in pairing mode, device Bluetooth off	Put headphones into pairing mode (flashing red/blue). Ensure Bluetooth is enabled on your device. Forget and re-pair the device.
MicroSD card not playing	Card not inserted correctly, unsupported file format	Reinsert the MicroSD card. Ensure files are in MP3 format.
LED lights not working	Lights turned off, low battery	Press the LED control button. Charge the headphones.

8. Specifications

Brand: STF
Model: Katu
Color: Pink
Ear Placement: On-Ear (Supraaural)
Connectivity: Wireless (Bluetooth) and Wired (3.5mm Jack)
Headphone Jack: 3.5 mm
Microphone: Integrated
Special Features: Cat ear shape with LED lights, MicroSD card reader (MP3 player)
Battery Life: Up to 4 hours (approximate)
Control Method: Tactile buttons
Audio Driver Type: Dynamic Driver
External Material: Plastic

9. Warranty and Support

STF products are covered by a limited warranty. For detailed warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official STF website. Keep your proof of purchase for warranty claims.

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STF Katu