Berlin – September 09, 2026 -- DUVA, a brand created by Fitnexa, unveiled DUVA ONE at IFA Berlin 2026, a sleep earbud system that adjusts audio and noise cancellation while a person is still asleep rather than just reporting data the next morning.
The earbuds respond to snoring partners and street noise mid-sleep
DUVA ONE pairs low-profile earbuds with a charging case that senses noise, light, temperature, and humidity in the bedroom. If a partner starts snoring or traffic gets louder, the system can boost active noise cancellation (ANC) or layer in sound masking automatically. A user might fall asleep to a podcast over Bluetooth, then have the system switch to locally stored sleep audio once they doze off, conserving battery in the process.
In-ear sensors track heart rate, HRV, and sleep position all night
Built-in PPG and motion sensors estimate sleep stages while tracking heart rate, heart rate variability, sleep position, and movement. An AI Agent combines this biometric data with environmental readings and playback status to decide how to intervene, whether adjusting ANC or triggering personalized audio guidance meant to help users fall asleep gradually.
Each earbud weighs about 3.3 grams for side sleepers
The low-profile design measures roughly 9.9 mm per earbud, with two ear-tip shapes and multiple tip and stabilizing-wing sizes creating more than 40 possible fit configurations for side sleeping.
Battery lasts up to 16 hours, with a private offline alarm
In its most power-efficient mode, DUVA ONE runs up to 16 hours, including 13 hours of local audio with ANC off or 9.5 hours with ANC on. The USB-C and wireless charging case adds up to five more recharges. A built-in offline alarm wakes only the wearer -- with gradually increasing volume and 5, 10, or 15-minute snooze options -- without needing an active phone connection.
DUVA says it does not record or store ambient audio
The company states DUVA ONE does not record conversations or upload raw environmental audio, and users can disable individual sensors or delete historical data through the DUVA App. Diego, Founder of Fitnexa, said sleep does not happen in a static environment, so the technology is designed to respond while sleep is still happening.
Pricing lands at $349.99 for an October 2026 launch
DUVA ONE is set for release in October 2026 at a target retail price of $349.99, with initial availability planned for the United States, Canada, the United Kingdom, the European Union, and Australia.