About Technology App Manual
What It Is

Meet BeCozU.

A wellness wearable that delivers gentle micro-pulses to the auricular vagus nerve in your ear, easing daily stress and guiding your body toward natural calm.

Non-invasive and quiet. The stimulation feels like a soft flow of energy rather than a shock, giving you a restful transition at the end of the day.

A woman reclining with her eyes closed, relaxing with a BeCozU device in her left ear
A stressed woman pressing her fingertips to her temples
Why You're Tired

Reset your stress.

Exhaustion that lingers even after a full night’s sleep is often rooted in autonomic tension.

A focused 30-minute session before bed or during a break helps down-regulate sympathetic responses, giving your autonomic system the space to recover.

Ergonomic Design

Designed for
comfort.

BeCozU is shaped as an in-ear insert with a speaker inside, sized to rest in the ear without asking for your attention.

Comfortable in-ear fit with a built-in speaker.

Compact charging case: ready whenever you are.

10 intensity levels, one step at a time, to find your setting.

The BeCozU in-ear wearable being placed in the ear
A woman wearing the BeCozU earbud, starting a stimulation session in the companion app
A Gentle Flow of Energy

What taVNS
feels like.

Delivered through electrode contacts in the left earbud, taVNS produces a subtle, tingling warmth designed for comfort.

Tune the intensity across 10 levels in the app, or stream soothing audio through the built-in speaker while the session runs.

In Their Own Words

What people are saying.

Brooke, a recording artist, holding her BeCozU case

My new favorite way to relax after dinner.

Brooke, recording artist
Scott, a writer, with his BeCozU box and charging case

With just one session, I'm already seeing great results.

Scott, writer
Josh, an accountant, wearing BeCozU earpieces

I can tell it's working because I can really feel it in my left ear.

Josh, accountant
Thea, a student, wearing BeCozU earpieces in her bedroom

The whole experience was overall super comfortable.

Thea, student
Hardware Specs

Technical Specifications

The BeCozU earbuds and charging cradle showing inner electrode pins, optical PPG sensor, and compact matte case
Weight
Earbud 13 g
Case 93 g
Size
Earbud 1.1 × 1.5 × 1.0 in
Case 2.4 × 3.5 × 1.8 in
Session Cycle
30-minute stimulation session
Charging
DC 5V 1A (USB-C), 4-hour charge time
Connectivity
Bluetooth 5.3 (Android & iOS app)
Measurements
Heart rate via PPG sensor
Package Contents

What's in the box.

BeCozU Earbuds, Charging Cradle, USB-C Cable, Ear Tips and User Manual Box Contents
BeCozU Earbuds (L/R)
Charging Cradle
Ear Tips
USB-C Cable
User Manual & Warranty
Who We Are

The team behind BeCozU.

We are Oceansbio USA, a medical-device developer that turned its work toward the nights people spend awake.

While we have traditionally focused on devices for clinical and patient use, we recognized a growing need for non-clinical solutions among the general public. Through extensive clinical trials and market research, we launched the BeCozU project.

The BeCozU earbuds and charging cradle in studio dark lighting
BeCozU earbud design concept sketches
Our Journey

A shared challenge,
a tailored answer.

Stress and sleep deprivation are serious issues for many people — more than just a matter of personal habits, it’s a problem for all of us to solve together.

Recent developments in wearable and digital technologies allowed us to provide an individually tailored solution, and we landed on taVNS as our core technology. Combined with calming music, the relaxing effect further increases. We brought these two together for a solution that lets you destress and wind down at any time — a thoughtfully engineered wellness device for your rest.

Development Roadmap

Milestones & Timeline.

2024
  • JUN Brainstorming
  • NOV Kickoff
  • DEC On-site interviews
2025
  • APR Test product manufacture
  • JUN Redesign and additional mold production
  • SEP Sample functionality testing
  • NOV Design color confirmation & sample check
2026
  • MAR Final product verification & mold revision
  • MAY Launch
  • JUN Production
  • SEP Shipping
Explore More

Discover More BeCozU.

See how the signal works, or take BeCozU with you.