Dali IO-4 Bluetooth Over-The-Ear Headphones

AUTHENTIC DALI SOUND

DALI IO is designed and developed in Denmark – build on custom solutions by DALI. The IO’s class-leading custom 50 mm paper fibre cone creates the most natural, transparent and authentic DALI sound. With low distortion and colouration. Reproducing music exactly as the artist intended.

BATTERY LIFE (60 hrs)

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 2.5 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.

CONNECTIVITY

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.

DALI IO

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

With our passion for music reproduction, we were convinced that we could do with headphones what we 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.

DALI IO-4 SPECS

Product series	Headphones
Headphone Principle	Closed back circumaural (over ear)
Full Range Driver	50 mm free edge paper fibre cone
Frequency Range (+/-3 dB) [Hz]	10 – 20,000
Maximum SPL [dB]	100
Connection Input	Bluetooth™ 5.0 3.5 mm Mini Jack USB-C
Wireless Input(s)	Bluetooth 5.0, AAC, aptX, aptX HD
Magnetic Shielding	No
Functions	Power ON/OFF Bluetooth™ Pair/Release Volume up/down Play/Pause/Skip track Take call
Noise Reduction	N/A
Hands-free Calls & Voice Assist	Clear Voice Communication (CVC)
Battery Playback Time	Up to 60 hours
Battery Charge Time	2.5 hours
Accessories Included	USB-C cable 3.5 mm stereo cable String bag
Replaceable Earpads	Yes
Weight [kg]	320 g
Compact Storage	One-way foldable
IP Rating	IP53
Analogue Input Sensitivity [mV]	200 mV rms / 175 mV rms
Input Impedance 3.5mm Mini-jack [Ω]	25