1. Introduction
Thank you for choosing the KONEX 40W Vintage Bluetooth Speaker. This portable wireless speaker combines classic aesthetics with modern audio technology, delivering powerful sound and versatile connectivity. This manual provides essential information for setting up, operating, and maintaining your speaker to ensure optimal performance and longevity.

The KONEX 40W Vintage Bluetooth Speaker, featuring a classic design and portable leather handle.
2. Product Overview
2.1 Key Features
- Retro Styled Design: Blends modern technology with classic aesthetics, featuring a rotary knob and leather texture.
- Powerful Audio: 50W of pure audio power with enhanced bass from high-quality tweeters and woofers.
- Adjustable Controls: Retro knobs for precise control over volume, bass, and treble.
- Robust Connectivity: Bluetooth 4.2 for stable connections up to 33 ft, plus a 3.5mm AUX input and USB port.
- Extended Playtime: Built-in 4400mAh rechargeable battery provides approximately 20 hours of music playback on a single charge.

Illustration of the speaker's internal components, highlighting the 4-inch woofer and 2.75-inch driver for superior sound quality.
2.2 What's in the Box
- KONEX 40W Vintage Bluetooth Speaker
- Rotary knob (pre-installed)
- Power cable
2.3 Controls and Ports
Familiarize yourself with the speaker's controls and connection ports:
- Power Switch: Toggle to turn the speaker On or Off.
- Volume Knob: Adjusts the overall sound output level.
- Bass Knob: Controls the low-frequency audio output.
- Treble Knob: Controls the high-frequency audio output.
- Bluetooth (BT) / AUX / USB Indicator: Shows the current input mode and battery level.
- Pair Button: Initiates Bluetooth pairing mode.
- Playback Control Buttons: Play/Pause, Skip Forward, Skip Backward.
- AUX Input: 3.5mm jack for wired audio connection.
- USB Port: For connecting USB devices.
- AC Input: Power port for charging and continuous operation.

Close-up view of the speaker's top panel, displaying the power switch, volume, bass, and treble knobs, along with Bluetooth pairing and playback controls.

The rear panel of the speaker, featuring the AUX input, USB port, and AC power input for versatile connectivity and charging.
3. Setup
3.1 Charging the Speaker
- Connect the provided power cable to the AC Input port on the back of the speaker.
- Plug the other end of the power cable into a standard electrical outlet (100-240V AC, 50/60Hz).
- The battery indicator lights on the control panel will illuminate to show charging status. All lights will be solid when fully charged.
- A full charge provides approximately 20 hours of playback time.

The speaker boasts a 4400mAh battery, providing over 20 hours of continuous music playback.
3.2 Powering On/Off
To power on the speaker, toggle the POWER switch to the 'ON' position. To power off, toggle the switch to the 'OFF' position.
3.3 Bluetooth Pairing
- Ensure the speaker is powered on. The Bluetooth indicator light will flash, indicating it's in pairing mode.
- On your mobile device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "K-two" or "Konex" from the list of devices.
- Once connected, the Bluetooth indicator light on the speaker will become solid.
- The speaker will automatically reconnect to the last paired device when powered on, if the device is within range.

The speaker utilizes Bluetooth 4.2 for fast and robust connections, offering a seamless pairing experience with your devices.
3.4 AUX Input Connection
For wired audio playback, connect a 3.5mm audio cable (not included) from your audio source to the AUX Input port on the back of the speaker. The speaker will automatically switch to AUX mode.
3.5 USB Input Connection
Insert a USB drive into the USB Port on the back of the speaker to play audio files directly from the drive. The speaker will automatically switch to USB mode.
4. Operating Instructions
4.1 Volume Control
Rotate the VOLUME knob clockwise to increase the volume and counter-clockwise to decrease it. You can also adjust the volume from your connected device.
4.2 Bass and Treble Adjustment
Use the BASS and TREBLE knobs to fine-tune the audio output to your preference. Rotate clockwise to increase and counter-clockwise to decrease the respective frequencies.

The unique Treble and Bass Adjust function allows you to customize the sound to achieve the best audio effect for different music genres.
4.3 Playback Controls
- Play/Pause: Press the Play/Pause button to start or pause playback.
- Skip Forward: Press the Skip Forward button to go to the next track.
- Skip Backward: Press the Skip Backward button to go to the previous track.
4.4 Portability
The integrated leather handle allows for easy transport of the speaker. Its robust design makes it suitable for both indoor and outdoor use.
Official product video demonstrating the KONEX Vintage Bluetooth Speaker's features, including its controls, portability, and sound quality.
5. Maintenance
- Cleaning: Use a soft, dry cloth to clean the speaker's exterior. Do not use abrasive cleaners or solvents.
- Storage: Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the speaker regularly, even if not in use for extended periods.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on | Low battery; Power switch off | Charge the speaker; Ensure power switch is in 'ON' position |
| No sound | Volume too low; Incorrect input mode; Device not connected | Increase volume; Select correct input (BT/AUX/USB); Re-pair Bluetooth or check cable connection |
| Bluetooth pairing fails | Speaker not in pairing mode; Device too far; Interference | Press 'PAIR' button; Move device closer (within 33 ft); Turn off other Bluetooth devices |
| Sound distortion | Volume too high; Bass/Treble set too high | Lower volume; Adjust Bass/Treble knobs |
7. Specifications
| Feature | Detail |
|---|---|
| Model Name | KONEX 40W Leather Portable Wireless Speaker |
| Speaker Maximum Output Power | 40 Watts |
| Connectivity Technology | Bluetooth, Auxiliary, USB |
| Bluetooth Version | 4.2 |
| Bluetooth Range | 33 Feet (10 meters) |
| Battery Life | 20 Hours |
| Battery Capacity | 4400 mAh |
| Speaker Type | Tweeter, Woofer |
| Woofer Diameter | 4 Inches |
| Tweeter Diameter | 2.75 Inches |
| Product Dimensions | 5.51"D x 8.66"W x 5.91"H |
| Item Weight | 7.63 pounds (3.47 Kilograms) |
| Power Source | Battery Powered |
| Input Voltage | 100-240V AC |
| Country of Origin | China |
| UPC | 645569510104 |
8. Warranty and Support
The KONEX 40W Vintage Bluetooth Speaker comes with a Limited Warranty. Please refer to the warranty card included in your product packaging for specific terms and conditions. For technical support, troubleshooting assistance, or warranty claims, please contact Konex audio customer service through the retailer where the product was purchased.
For the latest information and support, please visit the official Konex audio website or contact their customer support channels.