Turn on Bluetooth on your phone, open the DUVA ONE charging case, and keep the earbuds close to your phone.
Put DUVA ONE into pairing mode, then select DUVA ONE from your phone’s Bluetooth device list and complete pairing.
Check the following:
- Make sure the earbuds and charging case have enough battery.
- Make sure Bluetooth is turned on.
- Keep DUVA ONE close to your phone.
- Check whether DUVA ONE is already connected to another device.
If DUVA ONE still doesn’t appear, return to the DUVA app and try connecting again.
Open the charging case.
- If DUVA ONE has never been paired before, it will automatically become discoverable when the case is opened.
- If DUVA ONE has been paired before, it will first try to reconnect to the previously paired device. If reconnection times out, it will automatically become discoverable again.
Then select DUVA ONE from your phone’s Bluetooth device list to connect.
Open the DUVA app and sign in or create an account. Select DUVA ONE, follow the device-search instructions, and allow any required Bluetooth or Nearby Devices permissions.
If your phone shows a system Bluetooth pairing prompt, complete it first, then return to DUVA and wait until the app shows Connection Complete.
Size Fit helps you find a more secure and comfortable combination of ear tips, ear wings, and wearing position.
During setup, DUVA guides you through fit and movement checks. If the fit feels loose, insecure, too full, or uncomfortable, you can adjust the earbuds or try another size.
A good fit also helps support consistent device performance during sleep.
Choose a combination that feels secure and comfortable without creating noticeable pressure.
- If your ear canal feels full or compressed, try a smaller ear tip.
- If the earbud feels loose, try another ear tip or ear wing size.
- If the ear wing presses against your outer ear, try a different wing size.
Your left and right ears may need different tip and wing combinations. The goal is a secure, comfortable fit without forcing the earbuds into place.
Check the L and R markings, gently place each ear tip into your ear canal, then rotate the earbud until the ear wing rests securely in your outer ear.
The earbud should feel stable without noticeable pressure.
Yes. DUVA ONE is designed for side sleeping and extended overnight wear.
When side sleeping, use a fit and wearing position that keeps the earbud stable and comfortable when your ear rests against the pillow. If you feel pressure or pain, remove the earbud and adjust the ear tip, ear wing, or wearing position.
First, check the fit rather than forcing the earbuds further into your ears.
If you feel pressure or fullness, try a smaller ear tip. If the earbuds feel loose or move during sleep, try a different ear tip or ear wing size. If you feel pressure when lying on your side, adjust the wearing position or try another fit combination.
Place each earbud into the matching side of the charging case and make sure the charging contacts are correctly aligned.
To charge the charging case, connect the charging cable to the case and then to a compatible power source.
When DUVA ONE is connected, the device page can show available battery information for:
- Left earbud
- Right earbud
- Charging case
- Estimated remaining use time
The estimated remaining time updates dynamically based on your current settings and usage.
Estimated remaining time can change depending on how you use DUVA ONE. Features such as noise control, sleep tracking, phone audio, and built-in earbud audio can affect the estimate.
A noticeable change after switching settings can be normal.
A missing battery reading means the value is currently unavailable — it does not mean the battery is at 0%.
Return the earbuds to the charging case, reopen the case if needed, reconnect DUVA ONE, and allow the battery status to refresh.
Battery life varies by mode and audio source:
Noise Reduction Off:
- No Audio: 16h
- Local Audio: 13h
- Bluetooth Audio: 10.2h
Noise Reduction On:
- No Audio: 10h
- Local Audio: 9.5h
- Bluetooth Audio: 8.5h
Actual battery life may vary depending on volume, connection conditions, and usage.
The charging case can recharge the earbuds at least 5 times, providing up to 80 hours of additional battery life under the longest-runtime usage condition.
The four case LEDs show the remaining battery level:
- 4 LEDs: 76%–100%
- 3 LEDs: 51%–75%
- 2 LEDs: 26%–50%
- 1 LED: 11%–25%
- 1 flashing LED: 10% or below
If no LED lights up, charge the case for at least 10 minutes.
Yes. DUVA ONE supports Bluetooth audio from your phone, including music, podcasts, and audiobooks.
It also supports sleep sounds stored directly on the earbuds, so Bluetooth audio and on-earbud audio are two separate playback sources.
Yes. DUVA ONE can store available sleep sounds directly on earbuds.
These sounds are played from the earbuds rather than streamed from your phone.
Yes. Open Earbud Sound, choose the sound slot you want to replace, select and preview a new sound, then confirm the replacement.
Keep both earbuds connected while the new sound is being transferred.
Yes. Once local sleep audio is enabled, playback from the earbuds can continue even if the phone connection is interrupted.
Yes. Audio After Sleep lets you choose what DUVA ONE should do after sleep is detected.
You can choose:
- Play Earbud Sound — switch to a selected sound stored on the earbuds.
- Keep What’s Playing — continue the current audio.
- Stop Sound — stop audio playback.
This feature depends on Sleep Tracking, correct wear, and sleep detection.
Check whether any of these settings or playback conditions are affecting audio:
- Player Timer
- Audio After Sleep
- Auto Pause
- Earbud Sound
- Bluetooth output
- Device connection
These settings work independently, so audio stopping does not necessarily mean there is a problem with the earbuds.
DUVA ONE combines acoustic sealing, passive noise isolation, Enhanced Noise Reduction, and sleep sound masking to help reduce disruption from common nighttime noise.
It is designed around situations such as partner snoring, traffic, air conditioners, neighbor noise, and hotel environments.
DUVA ONE is designed to help reduce common nighttime disturbances such as:
- Partner snoring
- Traffic noise
- Air conditioners and low mechanical noise
- Neighbor noise
- Noise in hotels or other travel environments
Actual results can vary depending on the type of sound, your surroundings, and how well the earbuds fit.
No. DUVA ONE is designed to make snoring and other nighttime sounds less disruptive, not to completely eliminate all external sound.
Fit, ear-tip seal, the type of noise, and the surrounding environment can all affect the experience.
Yes. A secure ear-tip seal helps reduce the amount of outside sound entering the ear and supports the overall noise-reduction experience.
If noise reduction feels weaker than expected, check the fit and try a different ear tip size if needed.
DUVA ONE supports three noise-control states:
- Noise Reduction
- Transparency
- Off
Transparency allows more surrounding sound to pass through, while Off turns active noise-control processing off.
The Noise Reduction Timer controls when active noise reduction turns off automatically.
It works separately from Audio After Sleep and the app Playback Timer, so changing one does not automatically change the others.
You can set the timer for up to 8 hours, in 15-minute increments.
Yes. Noise reduction remains active even when the audio volume is set to zero.
Open DUVA ONE → Sleep Tracking, turn the feature on, and wait for the setting to synchronize.
Correct wear and usable sensor signals are required for Sleep Tracking to work properly.
After you wake up, return the earbuds to the charging case, open DUVA, and allow your data to synchronize and process.
Some sleep results may not appear immediately because synchronization and analysis can take time.
Depending on the available records, Sleep Overview can include:
- Total asleep
- Time in bed
- Sleep efficiency
- Resting heart rate
- Sleep records for the selected day
A single day may contain more than one sleep period.
DUVA ONE tracks four sleep stages throughout the night: Awake, REM, Light Sleep, and Deep Sleep.
Available sleep records can show overnight Heart Rate (HR) and Heart Rate Variability (HRV), together with longer-term history.
HRV varies between individuals and is most useful when viewed against your own historical trend rather than as a standalone sleep-quality score.
Right Now can show current physiological information when DUVA ONE is connected, Sleep Tracking is on, the earbuds are worn correctly, and usable signals are available.
It may take some time before a reading appears.
A sleep record may include sleep-position distribution and position history.
Periods when the earbuds are not worn or the signal is insufficient may remain unclassified.
Where sensor data is available, DUVA can show:
- Noise
- Light
- Temperature
- Humidity
These environmental measurements can be viewed alongside your sleep data.
Not necessarily.
Environmental changes shown alongside sleep changes are observations, not proof that one caused the other.
Rhythm uses your sleep history to identify recurring patterns in your own sleep over time.
It is designed to help you understand your personal sleep patterns rather than apply one fixed definition of a “good” night.
Open Alarm & Bedtime → Add Alarm.
Choose the alarm time and repeat days, select an alarm sound, set the earbud alarm volume, then save the alarm and allow the setting to synchronize.
Yes. The alarm rings directly through the earbuds.
Make sure the earbuds are charged and worn at the scheduled alarm time.
Yes. According to the current DUVA ONE product information, the earbud alarm supports offline triggering.
Use Stop or Snooze on the DUVA alarm screen.
Placing the earbuds into the charging case also stops the alarm.
You can set Snooze to Off, 5 minutes, or 10 minutes.
Fade In can be turned On or Off.
Bedtime Reminder is a notification sent to your phone to remind you when it is time to prepare for sleep.
It is separate from the earbud alarm and depends on your phone’s notification settings.
Sleep Cocktail lets you combine available sounds into a personalized sound mix.
You can choose different sounds, adjust individual volume levels, preview the mix, and save it for later use.
You can combine up to 10 sounds in a single Sleep Cocktail and adjust each sound to create your preferred mix.
Sleep Companion is DUVA’s AI-supported sleep experience.
Depending on your account access and available features, it can support interactions such as voice or text input, Agent Voice selection, recommended sounds, and audio playback.
Availability may depend on account eligibility, membership, and feature rollout.
Access to some AI features may be enabled separately from membership benefits.
Check the following:
- Make sure Bluetooth or Nearby Devices permission is enabled.
- Make sure system Bluetooth pairing has been completed.
- Check whether DUVA ONE is already connected to another device.
If your phone shows a Bluetooth pairing prompt, complete it first, then return to DUVA and allow the app connection to finish.
Check that:
- The earbuds remained correctly worn.
- Sleep Tracking stayed on.
- The earbuds had sufficient battery.
- The sleep record has finished synchronizing and processing.
Make sure:
- DUVA ONE is connected.
- Sleep Tracking is on.
- The earbuds are worn correctly.
- Wear has been recognized.
- Enough time has been allowed for signal acquisition.
A visible Right Now card does not necessarily mean a reading is immediately available.
Make sure both earbuds have at least 30% battery and remain connected throughout the transfer.
The replacement may fail if:
- either earbud has less than 30% battery,
- the Bluetooth connection is interrupted,
- the DUVA app is closed during the transfer,
- the replacement is manually canceled, or
- the network connection is unstable.
If the replacement fails, check these conditions and try again.
Check that:
- The alarm is enabled.
- The alarm setting is synchronized.
- The earbuds are charged.
- The correct alarm time and repeat days are saved.
- You are wearing earbuds at the scheduled alarm time.
For earbud firmware:
1. Connect both earbuds.
2. Open DUVA ONE → About → Earbud Firmware.
3. Review the available update and start the update.
4. Keep the earbuds connected and stay on the update screen until the process finishes.
Charging-case firmware uses a separate update process.
Check the battery level, device connection, network connection, and the required charging-case lid position for the update you are performing.
Stay on the update screen while retrying.
Open:
More Settings → Restore Default Settings
Confirm the reset, then place both earbuds in the charging case and close the lid. Wait 10 seconds, forget the previous DUVA ONE entry in your phone’s Bluetooth settings, then pair the earbuds again.
Resetting may remove device settings such as alarms, EQ profiles, and gesture assignments.
Setup & Pairing
Turn on Bluetooth on your phone, open the DUVA ONE charging case, and keep the earbuds close to your phone.
Put DUVA ONE into pairing mode, then select DUVA ONE from your phone’s Bluetooth device list and complete pairing.
Check the following:
- Make sure the earbuds and charging case have enough battery.
- Make sure Bluetooth is turned on.
- Keep DUVA ONE close to your phone.
- Check whether DUVA ONE is already connected to another device.
If DUVA ONE still doesn’t appear, return to the DUVA app and try connecting again.
Open the charging case.
- If DUVA ONE has never been paired before, it will automatically become discoverable when the case is opened.
- If DUVA ONE has been paired before, it will first try to reconnect to the previously paired device. If reconnection times out, it will automatically become discoverable again.
Then select DUVA ONE from your phone’s Bluetooth device list to connect.
Open the DUVA app and sign in or create an account. Select DUVA ONE, follow the device-search instructions, and allow any required Bluetooth or Nearby Devices permissions.
If your phone shows a system Bluetooth pairing prompt, complete it first, then return to DUVA and wait until the app shows Connection Complete.
Size Fit helps you find a more secure and comfortable combination of ear tips, ear wings, and wearing position.
During setup, DUVA guides you through fit and movement checks. If the fit feels loose, insecure, too full, or uncomfortable, you can adjust the earbuds or try another size.
A good fit also helps support consistent device performance during sleep.
Wearing & Comfort
Choose a combination that feels secure and comfortable without creating noticeable pressure.
- If your ear canal feels full or compressed, try a smaller ear tip.
- If the earbud feels loose, try another ear tip or ear wing size.
- If the ear wing presses against your outer ear, try a different wing size.
Your left and right ears may need different tip and wing combinations. The goal is a secure, comfortable fit without forcing the earbuds into place.
Check the L and R markings, gently place each ear tip into your ear canal, then rotate the earbud until the ear wing rests securely in your outer ear.
The earbud should feel stable without noticeable pressure.
Yes. DUVA ONE is designed for side sleeping and extended overnight wear.
When side sleeping, use a fit and wearing position that keeps the earbud stable and comfortable when your ear rests against the pillow. If you feel pressure or pain, remove the earbud and adjust the ear tip, ear wing, or wearing position.
First, check the fit rather than forcing the earbuds further into your ears.
If you feel pressure or fullness, try a smaller ear tip. If the earbuds feel loose or move during sleep, try a different ear tip or ear wing size. If you feel pressure when lying on your side, adjust the wearing position or try another fit combination.
Battery & Charging
Place each earbud into the matching side of the charging case and make sure the charging contacts are correctly aligned.
To charge the charging case, connect the charging cable to the case and then to a compatible power source.
When DUVA ONE is connected, the device page can show available battery information for:
- Left earbud
- Right earbud
- Charging case
- Estimated remaining use time
The estimated remaining time updates dynamically based on your current settings and usage.
Estimated remaining time can change depending on how you use DUVA ONE. Features such as noise control, sleep tracking, phone audio, and built-in earbud audio can affect the estimate.
A noticeable change after switching settings can be normal.
A missing battery reading means the value is currently unavailable — it does not mean the battery is at 0%.
Return the earbuds to the charging case, reopen the case if needed, reconnect DUVA ONE, and allow the battery status to refresh.
Battery life varies by mode and audio source:
Noise Reduction Off:
- No Audio: 16h
- Local Audio: 13h
- Bluetooth Audio: 10.2h
Noise Reduction On:
- No Audio: 10h
- Local Audio: 9.5h
- Bluetooth Audio: 8.5h
Actual battery life may vary depending on volume, connection conditions, and usage.
The charging case can recharge the earbuds at least 5 times, providing up to 80 hours of additional battery life under the longest-runtime usage condition.
The four case LEDs show the remaining battery level:
- 4 LEDs: 76%–100%
- 3 LEDs: 51%–75%
- 2 LEDs: 26%–50%
- 1 LED: 11%–25%
- 1 flashing LED: 10% or below
If no LED lights up, charge the case for at least 10 minutes.
Sleep Audio & Playback
Yes. DUVA ONE supports Bluetooth audio from your phone, including music, podcasts, and audiobooks.
It also supports sleep sounds stored directly on the earbuds, so Bluetooth audio and on-earbud audio are two separate playback sources.
Yes. DUVA ONE can store available sleep sounds directly on earbuds.
These sounds are played from the earbuds rather than streamed from your phone.
Yes. Open Earbud Sound, choose the sound slot you want to replace, select and preview a new sound, then confirm the replacement.
Keep both earbuds connected while the new sound is being transferred.
Yes. Once local sleep audio is enabled, playback from the earbuds can continue even if the phone connection is interrupted.
Yes. Audio After Sleep lets you choose what DUVA ONE should do after sleep is detected.
You can choose:
- Play Earbud Sound — switch to a selected sound stored on the earbuds.
- Keep What’s Playing — continue the current audio.
- Stop Sound — stop audio playback.
This feature depends on Sleep Tracking, correct wear, and sleep detection.
Check whether any of these settings or playback conditions are affecting audio:
- Player Timer
- Audio After Sleep
- Auto Pause
- Earbud Sound
- Bluetooth output
- Device connection
These settings work independently, so audio stopping does not necessarily mean there is a problem with the earbuds.
Noise Reduction
DUVA ONE combines acoustic sealing, passive noise isolation, Enhanced Noise Reduction, and sleep sound masking to help reduce disruption from common nighttime noise.
It is designed around situations such as partner snoring, traffic, air conditioners, neighbor noise, and hotel environments.
DUVA ONE is designed to help reduce common nighttime disturbances such as:
- Partner snoring
- Traffic noise
- Air conditioners and low mechanical noise
- Neighbor noise
- Noise in hotels or other travel environments
Actual results can vary depending on the type of sound, your surroundings, and how well the earbuds fit.
No. DUVA ONE is designed to make snoring and other nighttime sounds less disruptive, not to completely eliminate all external sound.
Fit, ear-tip seal, the type of noise, and the surrounding environment can all affect the experience.
Yes. A secure ear-tip seal helps reduce the amount of outside sound entering the ear and supports the overall noise-reduction experience.
If noise reduction feels weaker than expected, check the fit and try a different ear tip size if needed.
DUVA ONE supports three noise-control states:
- Noise Reduction
- Transparency
- Off
Transparency allows more surrounding sound to pass through, while Off turns active noise-control processing off.
The Noise Reduction Timer controls when active noise reduction turns off automatically.
It works separately from Audio After Sleep and the app Playback Timer, so changing one does not automatically change the others.
You can set the timer for up to 8 hours, in 15-minute increments.
Yes. Noise reduction remains active even when the audio volume is set to zero.
Sleep Tracking & Insights
Open DUVA ONE → Sleep Tracking, turn the feature on, and wait for the setting to synchronize.
Correct wear and usable sensor signals are required for Sleep Tracking to work properly.
After you wake up, return the earbuds to the charging case, open DUVA, and allow your data to synchronize and process.
Some sleep results may not appear immediately because synchronization and analysis can take time.
Depending on the available records, Sleep Overview can include:
- Total asleep
- Time in bed
- Sleep efficiency
- Resting heart rate
- Sleep records for the selected day
A single day may contain more than one sleep period.
DUVA ONE tracks four sleep stages throughout the night: Awake, REM, Light Sleep, and Deep Sleep.
Available sleep records can show overnight Heart Rate (HR) and Heart Rate Variability (HRV), together with longer-term history.
HRV varies between individuals and is most useful when viewed against your own historical trend rather than as a standalone sleep-quality score.
Right Now can show current physiological information when DUVA ONE is connected, Sleep Tracking is on, the earbuds are worn correctly, and usable signals are available.
It may take some time before a reading appears.
A sleep record may include sleep-position distribution and position history.
Periods when the earbuds are not worn or the signal is insufficient may remain unclassified.
Where sensor data is available, DUVA can show:
- Noise
- Light
- Temperature
- Humidity
These environmental measurements can be viewed alongside your sleep data.
Not necessarily.
Environmental changes shown alongside sleep changes are observations, not proof that one caused the other.
Rhythm uses your sleep history to identify recurring patterns in your own sleep over time.
It is designed to help you understand your personal sleep patterns rather than apply one fixed definition of a “good” night.
Alarm & Smart Features
Open Alarm & Bedtime → Add Alarm.
Choose the alarm time and repeat days, select an alarm sound, set the earbud alarm volume, then save the alarm and allow the setting to synchronize.
Yes. The alarm rings directly through the earbuds.
Make sure the earbuds are charged and worn at the scheduled alarm time.
Yes. According to the current DUVA ONE product information, the earbud alarm supports offline triggering.
Use Stop or Snooze on the DUVA alarm screen.
Placing the earbuds into the charging case also stops the alarm.
You can set Snooze to Off, 5 minutes, or 10 minutes.
Fade In can be turned On or Off.
Bedtime Reminder is a notification sent to your phone to remind you when it is time to prepare for sleep.
It is separate from the earbud alarm and depends on your phone’s notification settings.
Sleep Cocktail lets you combine available sounds into a personalized sound mix.
You can choose different sounds, adjust individual volume levels, preview the mix, and save it for later use.
You can combine up to 10 sounds in a single Sleep Cocktail and adjust each sound to create your preferred mix.
Sleep Companion is DUVA’s AI-supported sleep experience.
Depending on your account access and available features, it can support interactions such as voice or text input, Agent Voice selection, recommended sounds, and audio playback.
Availability may depend on account eligibility, membership, and feature rollout.
Access to some AI features may be enabled separately from membership benefits.
Troubleshooting & Device Management
Check the following:
- Make sure Bluetooth or Nearby Devices permission is enabled.
- Make sure system Bluetooth pairing has been completed.
- Check whether DUVA ONE is already connected to another device.
If your phone shows a Bluetooth pairing prompt, complete it first, then return to DUVA and allow the app connection to finish.
Check that:
- The earbuds remained correctly worn.
- Sleep Tracking stayed on.
- The earbuds had sufficient battery.
- The sleep record has finished synchronizing and processing.
Make sure:
- DUVA ONE is connected.
- Sleep Tracking is on.
- The earbuds are worn correctly.
- Wear has been recognized.
- Enough time has been allowed for signal acquisition.
A visible Right Now card does not necessarily mean a reading is immediately available.
Make sure both earbuds have at least 30% battery and remain connected throughout the transfer.
The replacement may fail if:
- either earbud has less than 30% battery,
- the Bluetooth connection is interrupted,
- the DUVA app is closed during the transfer,
- the replacement is manually canceled, or
- the network connection is unstable.
If the replacement fails, check these conditions and try again.
Check that:
- The alarm is enabled.
- The alarm setting is synchronized.
- The earbuds are charged.
- The correct alarm time and repeat days are saved.
- You are wearing earbuds at the scheduled alarm time.
For earbud firmware:
1. Connect both earbuds.
2. Open DUVA ONE → About → Earbud Firmware.
3. Review the available update and start the update.
4. Keep the earbuds connected and stay on the update screen until the process finishes.
Charging-case firmware uses a separate update process.
Check the battery level, device connection, network connection, and the required charging-case lid position for the update you are performing.
Stay on the update screen while retrying.
Open:
More Settings → Restore Default Settings
Confirm the reset, then place both earbuds in the charging case and close the lid. Wait 10 seconds, forget the previous DUVA ONE entry in your phone’s Bluetooth settings, then pair the earbuds again.
Resetting may remove device settings such as alarms, EQ profiles, and gesture assignments.