Lightweight Wireless Headphones Feature 1.97-Inch Drivers, Last up to 60 Hours on a Single Charge: Dali IO-4 Connects Via aptX HD and Bluetooth 5.0, Folds for Easy Portability
Employing advanced technology used to create Dali's award-winning speaker lines, and bolstered by custom 1.97-inch paper fiber-cone drivers with an optimized neodymium magnet system, the IO-4 closed-back headphones turn the concept of affordable wireless high-end performance on its ear. Able to play with low distortion and coloration, the Denmark-developed IO-4 prides itself on accuracy, dynamics, and fatigue-free involvement that take you inside the recording.
Connectable via Bluetooth 5.0, ACC, and aptX HD, the lightweight 'phones also use Clear Voice Communication for hands-free calls, so you'll never need worry about missing out on an important contact while listening to music. And did we mention IO-4 lasts for up to 60 hours on a single charge to its lithium-ion battery? That's convenience! Ditto the two multi-color LED indicators on the right ear cup, and a passive mode that keeps IO-4 running even if you run out of battery. Simply plug-in the supplied mini-jack cable. When you're ready to charge again, IO-4 fully restores to full potential in just 2.5 hours.
Importantly, the 11.3-ounce IO-4 also keeps your comfort in mind. Memory-foam ear pads that naturally shape to the human head for a cohesive seal. The pads are also covered in soft synthetic leather, while the ear cups rotate 90 degrees both ways in order to fold flat for compact storage or hang comfortably around your neck. Whether you listen at home or on the go, or both, IO-4 has your needs covered. A USB-C cable, 3.5mm cable, and bag come with every pair.
Experience a new age of wireless sound – and super-long battery life – with IO-4, backed by our 100% Music Direct Satisfaction Guarantee.
Full Range Driver: 50 mm free edge paper fibre cone
Frequency Range (+/-3 dB) [Hz]: 10 - 20,000
Maximum SPL [dB]: 100
3.5 mm Mini Jack
Wireless Input(s): Bluetooth 5.0, AAC, aptX, aptX HD
Magnetic Shielding: No
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
Replaceable Earpads: Yes
Compact Storage: One-way foldable
IP Rating: IP53
Analogue Input Sensitivity: 200 mV rms / 175 mV rms
Input Impedance 3.5mm Mini-jack: 25Ω
3.5 mm stereo cable
Weight: 11.3 oz.
User Manual (PDF, 1.4 MB)