DALI IO-6
DALI IO-6 Premium Wireless Over-The-Ear ANC Headphones User Manual
Model: IO-6
Introduction
Welcome to the user manual for your DALI IO-6 Premium Wireless Over-The-Ear ANC Headphones. These headphones are designed to deliver exceptional audio quality with the convenience of wireless connectivity and advanced Active Noise Cancellation (ANC) technology. This manual provides essential information on setup, operation, maintenance, and troubleshooting to ensure you get the most out of your DALI IO-6 headphones.
Package Contents
Before you begin, please ensure all items are present in the package:
- DALI IO-6 Headphones
- USB Charging Cable
- 3.5mm Audio Cable
- Travel Case (if included)
- Quick Start Guide
- Ear Cushions
Note: The specific contents may vary slightly based on regional packaging.
Setup
1. Charging the Headphones
Before first use, fully charge your DALI IO-6 headphones. A full charge provides approximately 30 hours of battery life with ANC enabled.
- Connect the supplied USB charging cable to the USB-C port on the headphones.
- Connect the other end of the cable to a USB power adapter (not supplied) or a powered USB port on a computer.
- The LED indicator on the headphones will show charging status. It typically takes about 2 hours for a full charge.

Figure 1: DALI IO-6 headphones, Army Green color, showing the overall design. The USB-C port is located on one of the earcups.
2. Bluetooth Pairing
Pair your DALI IO-6 headphones with your Bluetooth-enabled device (smartphone, tablet, laptop, etc.).
- Ensure the headphones are powered off.
- Press and hold the Power/Bluetooth button on the headphones for approximately 5 seconds until the LED indicator flashes blue and red, indicating pairing mode.
- On your device, go to Bluetooth settings and enable Bluetooth.
- Select "DALI IO-6" from the list of available devices.
- Once paired, the LED indicator on the headphones will turn solid blue.

Figure 2: Front view of the DALI IO-6 headphones, showcasing the earcups and headband. The control buttons are located on the right earcup.
3. Wired Connection
For a wired connection, use the supplied 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 to the 3.5mm audio output jack on your device.
- The headphones will automatically switch to wired mode.
Operating Instructions
Power On/Off
- To power on: Press and hold the Power button for 2 seconds.
- To power off: Press and hold the Power button for 3 seconds.
Music Playback and Call Control
| Function | Action |
|---|---|
| Play/Pause | Press the Multi-function button once. |
| Next Track | Press the Multi-function button twice. |
| Previous Track | Press the Multi-function button three times. |
| Volume Up | Press the Volume + button. |
| Volume Down | Press the Volume - button. |
| Answer/End Call | Press the Multi-function button once. |
| Reject Call | Press and hold the Multi-function button for 2 seconds. |
| Activate Voice Assistant | Press and hold the Multi-function button for 2 seconds (when not on a call). |
Active Noise Cancellation (ANC) and Transparency Mode
The DALI IO-6 features Active Noise Cancellation to reduce ambient noise and a Transparency Mode to allow external sounds to pass through.
- To cycle through ANC modes (ANC On, Transparency Mode, ANC Off): Press the ANC button located on the earcup.
- The LED indicator will change color to indicate the current ANC mode.

Figure 3: Close-up view of the DALI IO-6 earcup, highlighting the DALI logo and the subtle design details. The control buttons are integrated into the earcup design.
Maintenance and Care
Proper care will extend the life and performance of your DALI IO-6 headphones.
- Cleaning: Use a soft, dry cloth to clean the headphones. Do not use abrasive cleaners, solvents, or strong chemicals.
- Storage: When not in use, store the headphones in their protective travel case to prevent damage.
- Temperature: Avoid exposing the headphones to extreme temperatures (hot or cold) or high humidity.
- Liquid Exposure: Keep the headphones away from water and other liquids. They are not waterproof.
- Ear Cushions: The ear cushions are designed for comfort and can be replaced if worn. Refer to DALI's official website for replacement parts.

Figure 4: DALI IO-6 headphones resting on a concrete surface, demonstrating their robust build and design. This image highlights the durable materials used.
Troubleshooting
If you encounter issues with your DALI IO-6 headphones, try the following solutions:
| Problem | Possible Solution |
|---|---|
| No Power | Ensure the headphones are fully charged. Connect to a power source and check the charging indicator. |
| Cannot Pair via Bluetooth |
|
| No Sound |
|
| ANC Not Working Effectively |
|
Specifications
| Feature | Detail |
|---|---|
| Model Name | IO-6 |
| Connectivity Technology | Wireless (Bluetooth 5.0) |
| Noise Control | Active Noise Cancellation (ANC) |
| Headphones Jack | 3.5 mm Jack |
| Battery Life | Up to 30 hours (with ANC) |
| Charging Time | Approx. 2 hours |
| Frequency Range | 10 - 20000 Hz |
| Impedance | 25 Ohm |
| Audio Driver Size | 50 mm |
| Material | Plastic, Memory Foam |
| Product Dimensions | 3.11 x 8.86 x 9.65 inches |
| Item Weight | 2.4 pounds |
Warranty and Support
DALI products are built to high standards and come with a limited warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official DALI website.
For technical support, service, or replacement parts, please contact DALI customer support through their official website or authorized service centers. You can find more information and contact details at: www.dali-speakers.com
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