Dali IO-4 - premium Bluetooth headphones (incl. various cables / incl. string bag / black = Iron Black)

Article number: 11008439
VAT included Plus shipping costs  (from 0.00 )
3% discount: 290.03 For payment by cash in advance (bank transfer) or pickup on the spot
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    qualitative premium stereo Bluetooth headphones in black finish (= Iron Black)
    superlative musical experience thanks to absolutely authentic DALI sound
    wireless hi-fi headphones with very long battery life (60 hours)
    to increase the enjoyment of the unique warmth and the fine analog details of your music
    ultimate wearing comfort & elegant design
    hands-free calls and voice assist
    including USB-C port for digital audio streaming via Windows or Mac
    DALI - IO headphones support Bluetooth AptX, AptX HD and Apple AAC
    high-grade materials with excellent workmanship
    optimum performances - strong power handling
    these headphones are also available in white finish (= Caramel White)
    we are specialized dealer for DALI products - your authorized dealer in Leipzig

DALI IO premium Bluetooth® headphones - Go with music!

Immerse yourslef in a breathtaking hi-fi experience wherever you are.

A wireless music experience generating real-life sensations of energy and spatial expansion.

The DALI IO-4 headphones are designed for maximum comfort with a durable design and a natural, transparent sound performance. Featuring a class-leading 60 hour battery life. Designed and developed from the bottom up in our headquarters in Denmark.

Product description

The wireless over-ear headphone DALI IO-4 celebrated its world premiere at the IFA 2019 in Berlin and, together with its sister model IO-6, is the first hi-fi headphone in the 35-year DALI history.

With DALI's 35+ years of experience in creating high quality loudspeakers, DALI decided to use their passion and expertise to create the wireless DALI IO-4 - dedicated to today’s music lovers.

With their passion for music reproduction, DALI was convinced that they could do with headphones what they have done with speakers; provide a better sounding product that delivers music experiences superior to the established competition.

Headphones are essentially a pair of small loudspeakers mounted on your head. They are your personal set of portable hi-fi speakers that enable you to take that authentic DALI sound with you wherever you go.

The DALI IO-4's are intended to be the perfect travel companion for those ‘on the go’ situations.

IO philosophy

With over 35 years of experience in developing high quality DALI speakers, we have decided to use our passion for music and our expertise for excellent sound quality in the development of wireless headphones as well. Because headphones are essentially a pair of small, head-mounted speakers, DALI's IO models are your personal set of portable hi-fi transducers that allow you to take the authentic DALI sound with you wherever you go.

Authentic sound

With DALI IO headphones, users benefit from more than 35 years of experience designing some of the finest hi-fi loudspeakers in the world. The DALI IO-4's are designed and engineered by the same team and to the same basic principles as any other DALI loudspeaker. The aim is to create the most natural and authentic sound possible - and to reproduce music exactly as intended by the artist. All done, “In admiration of music”.

Being a loudspeaker company, DALI fully understand the importance of a high performance driver. It was a big surprise for DALI to discover that within the headphone industry, drivers are often considered as cheap commodity components, with no real engineering attention paid to them.

The DALI IO-4 headphones utilise a high quality custom designed driver with a large 50 mm diaphragm and an optimised neodymium magnet system to achieve low distortion, minimal colouration and accurate dynamics throughout the entire frequency range.

The large diameter driver ensures linear operation with minimum compression. This, together with the well controlled breakups of the paper fibre cone diaphragm means that even the most minute music details stand out crystal clear. It also means that the sound never gets tiring, even after hours of listening.

Comfort & design

The stylish DALI IO-4 headphones have been ergonomically optimized and designed with the right amount of adjustability to ensure a comfortable fit to any user.

A headphone's ear pad is the primary contact point between head and headphones. For maximum comfort, it must be soft and compliant to distribute the headband pressure evenly.

The ear pads of the DALI IO are made from memory foam that naturally shapes to the head, therefore creating the best possible seal, which is important for a consistent acoustic performance. The pads are covered in soft synthetic leather, chosen for maximum comfort and durability.

The DALI IO-4 have been designed with the lowest possible weight in mind. The weight of the headphones was an extremely important factor for long term comfort over long periods of use. The material choice of every individual component has been carefully selected in order to achieve minimum weight without compromising quality or durability.

The headphones are designed with real use in mind and have been tested to meet all real life challenges. So we made sure they are IP53 certified and that the ear cups are able to rotate 90 degrees both ways in order to fold flat for compact storage or to hang comfortably around the neck.

Long battery time

For days listening to music without recharging - the DALI development engineers had this in mind as well in their work. A powerful 1100 mAh lithium-ion battery allows the IO-4 to run for up to 60 hours. A better staying power can not be found anywhere else on the headphone market. Such a long battery life guarantees the freedom of not having to worry about an imminent end of the power supply.

So that you always know which power reserves the battery still has, the IO-4 reports the current state of charge of the battery every time it is switched on with a voice message. In addition, the battery status is also visually displayed by two multicolored LEDs on the right auricle.

And even when power is lost, the passive mode of the IO-4 keeps the music alive. Then simply connect the headphones to your audio device with the supplied mini-jack cable and let the DALI IO-4 run in "Off" mode.

Authentic DALI sound

The DALI IO's are designed and developed in Denmark - build on custom solutions by DALI. And this makes all the difference! The IO's large class-leading custom 50 mm paper fibre driver creates the most natural, transparent and authentic DALI sound - with low distortion and colouration - while reproducing music exactly as the artist intended.

Battery life (60 hours)

The IO-4 provides an incredible class-leading 60 hour battery life, which lets you go for weeks without charging. And should you run out of power, the IO-4 just keeps on going in the passive "Off" mode, when using the supplied Mini Jack cable. Or recharge to 100% in 2 hours via a standard USB-C connector.

Comfort & durability

The DALI IO ear pads are made from memory foam that shapes to the head for maximum comfort and fit - creating the best possible seal. The pads are covered in soft synthetic leather, chosen for both comfort and durability, and tested to meet real life challenges.


For high wireless audio performance, the DALI IO supports Bluetooth AptX, AptX HD and Apple AAC. But for the highest possible quality, DALI IO includes a USB-C connector, which supports digital audio streaming from Windows or Mac. The IO also incorporates a traditional wired analogue mini jack.

Hands-free calls and voice assist

The built-in microphones in the IO headphones allow you to use the headphones also for hands-free telephone calls and voice conrol.

Attention: additionally also other DALI products are available.

Additional information about the new headphone series from DALI

DALI IO headphones

The DALI IO is luxurious wireless headphones - designed and developed in Denmark. With class-leading battery time, audio comfort and sound performance. DALI IO is built for extended listening with a comfortable, durable design and a natural transparent sound that never tires.

Ultimate comfort

Every one of us is unique; we all have different sized heads and ears. DALI IO headphones have been ergonomically optimised to ensure they comfortably fit as many people as possible. This required numerous prototypes, and analysis of different combinations of ear pads, headband curves and ear-cup angles. The result is a design with the right amount of adjustability required to provide a natural fit to anyone.

Epic 30 & 60 hour battery life

The long battery life grants freedom from worrying about running out of power. Go longer with the large capacity, high-quality li-ion battery featured in both the DALI IO-4 and IO-6. DALI provides best-in-class matching 30 hour battery life for the IO-6, and the incredible new class leading 60 hour battery life in the IO-4; enough to go for days without charging.

Authentic DALI sound

DALI IO headphones are designed and engineered by the same team and to the same basic principles as any other DALI loudspeaker. The aim is to create the most natural and authentic sound possible and to reproduce music exactly as intended by the artist. DALI IO headphones utilise a high quality custom designed driver with a large 50mm diaphragm and an optimised neodymium magnet system to achieve low distortion, minimal colouration and accurate dynamics throughout the entire frequency range.

Discover your own personal sound experience

In our living room studio "Klangvilla" in Leipzig we feature more DALI products which are at all times ready for presentation. You will have the option to be explained and demonstrated also other high-quality high-end devices by our sales manager who will be available for you. We can also recommend the appropriate wiring and other high quality hi-fi accessories. Please just simply arrange a date for demonstration or consulting service with our home hi-fi sales manager by e-mail or by telephone.

Technical Data

Specifications - DALI - IO-4 - premium Bluetooth headphones
Hersteller / Manufacturer: DALI
Produkt / Product: IO-4
Produktserie / Product series: Dali IO
Produktart / Product type: Premium Bluetooth-Kopfhörer / premium Bluetooth headphones
Farbe / Colour: Iron Black (= schwarz / black)
Gewicht (ohne Kabel) / Weight (without cord): ca. 320 g
Kopfhörer-Prinzip (Over-Ear)/ Headphone principle (over ear): Geschlossen (circumaural) / closed (circumaural)
Full Range-Treiber / Full range driver: 50 mm freikantige Papierfasermembrann / 50 mm free edge paper fibre cone

Scope of Delivery

  • 1 x DALI - IO-4 - premium Bluetooth headphones in black (Iron Black)
  • 1 x 3.5 mm stereo cable
  • 1 x USB-C cable
  • 1 x string bag
  • 1 x operating instructions
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