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Always on, automated audio for whatever world you’re in
High quality noise canceling and natural ambient Sound
Immersive sound quality with Integrated Processor V1
Ultra-clear call quality lets sound come in clear
Listen all day, charge in minutes 2
IPX4 water resistant for everyday use 1
LinkBuds S feature intuitive touch control settings
Talk and hear only ambient sound
Instant pause. Instant play.
WFLS900N/B
LinkBuds S Truly Wireless Noise Canceling Earbuds
Automate your audio experience with ultralight headphones that feature smart
technology to connect your online and offline worlds like never before.
Seamlessly shift from ambient sound to advanced noise canceling and enable
automatic playback that learns from your behavior. LinkBuds S deliver the right
sound for whatever world you’re in.
Bullets
Features
Never Off
With LinkBuds S, you're always connected. Wear them comfortably around the clock, staying in
touch with people and places without having to pause your playlist.
Premium Noise Canceling
When you are ready to tune out the noise, LinkBuds S offer premium noise canceling to help you
focus on your favorite playlist or podcast.
All your worlds, connected and optimized
Link your worlds as LinkBuds S switch seamlessly between superlative noise canceling and
natural ambient sound. Smart features and settings learn from your behavior and automatically
adjust sound settings to provide the right sound for the moment.
Hear more of what's around you
These earbuds give you the best of both worlds - natural ambient sound when you want to
interact with your world, so you can have a conversation or be aware of your surroundings.
Small and light for all-day comfort
Approximately 4.8 grams in weight with a compact design, LinkBuds S are smaller and lighter
than other noise canceling earbuds. Silicone earbud tips provide a comfortable fit that stays in
place.
Adaptive Sound Control automatically adjusts to whatever you do
Adaptive Sound Control is a smart function that senses where you are and what you’re doing,
then adjusts ambient sound settings for the ideal listening experience. Over time, it learns your
behavior and recognizes locations that you frequently visit, such as your workplace or a favorite
café, and adapts to the situation.
Smart features that seamlessly integrate music into your routine
With Auto Play, LinkBuds S can automatically play music as soon as you put the headphones on
or finish a call. Settings can also trigger music to match your behavior, such as a mood-changing
walk or a post-meeting focus track. 5,10
Clear calls and immersive sound
Easily connect with the people you know and the content you love. Make crystal clear calls and
listen to high-quality music – even in windy or noisy environments. AI based noise reduction
algorithm isolates your voice and keeps conversations crisp.
Built with premium sound technology
A newly developed 5mm driver unit, featuring a high-compliance diaphragm, helps keep the
LinkBuds S small while driving your music with rich low frequency bass sound. Sony’s Integrated
Processor V1 improves noise cancellation, enhances sound quality, and reduces distortion.
Enjoy High-Resolution Audio without wires
LinkBuds S support High-Resolution Audio Wireless by transmitting approximately three times
more data than conventional Bluetooth® audio6 with LDAC audio coding technology. DSEE
Extreme™ upscales compressed digital music files and restores high range sound lost in
compression.7
Talk and hear only ambient sound
Voice pickup technology and Speak-to-Chat automatically pause the music as soon as you speak
to someone, so you can conduct a conversation – handy if you want to keep your headphones on
or your hands are full. And once your chat is over, your music starts playing again automatically.8
Everything’s at your fingertips
LinkBuds S features intuitive touch control settings – for example, tap on the left earbud to
change from Noise Canceling to Ambient Sound and long tap for Quick Attention, or double tap
on the right to skip to the next track. Explore default settings customize your functions using the
Headphones Connect app.5
Instant pause. Instant play.
Just take the earbuds out of your ears and the music stops – a proximity sensor knows when you
are wearing one or both earbuds. Pop the earbuds back in and the music starts again.
Control with your voice
Just say “OK Google” or “Alexa” to activate your preferred voice assistant. 10 Enjoy entertainment,
connect with friends, get information, listen to music and notifications, set reminders, and more.
You can even control your headphones’ features like noise cancellation with your voice,11 listen
to and interact with emails in Microsoft Outlook, and join Microsoft Teams meetings using Google
Assistant or Siri.9
Quick access to your favorite music and soundscapes
With Quick Access, you can configure these wireless earbuds to resume Spotify music playback
or Endel personalized soundscapes with two or three taps – no need to touch your
smartphone.5,10
Find your headphones with Fast Pair
LinkBuds S support Google’s Fast Pair feature. Easily find your missing headphones by sound or
check their last known location in Google’s Find My Device app on your smartphone.5,13,14
Made with the environment in mind
Your LinkBuds S are designed for both style and environmental consciousness. The earbuds use
recycled plastic materials from automobile parts, and the packaging uses no plastic.3
Water resistant for everyday use
With an IPX4 water resistance rating1, splashes and sweat won’t stop these Sony earbuds – so
you can keep on moving to the music.
Listen all day, charge in minutes
Enjoy up to 6 hours of battery from your headphones and store another 14 hours in the case for
up to 20 hours2 of listening. In a hurry? Just a 5-minute quick charge gives you up to 60 minutes
of play time. The Sony | Headphones Connect app will notify you when your charging case drops
below 30%.5
What's in the box?
Open up the packaging of your LinkBuds S and you'll find 4 sizes of silicone earbud tips to suit
different ear shapes and a USB-C charging cable.
So immersive. So real.
Immerse yourself in sound all around you. As real as if you are there at a live concert or with the
artist recording in a studio. With 360 Reality Audio, music has never been so immersive and so
real. These headphones let you enjoy 360 Reality Audio.10
A personal cinematic experience
Enjoy a thrilling Dolby Atmos® experience and 360 Spatial Sound when LinkBuds are paired with
your BRAVIA XR TV using the WLA-NS7 wireless transmitter.12
Specification
Battery
Battery Life (continuous
music playback time)
(Buds+Case)
Max. 20 hrs (6 hrs+14 hrs)
Battery Charge Method USB Charging (with case)
Battery Charge Time (Buds) Approx. 2.0 hrs
Bluetooth®
Specification
Bluetooth® version Bluetooth Specification Version 5.2
Effective Range 32.81 ft
Frequency Range 2.4 GHz band (2.4000–2.4835 GHz)
Profile A2DP, AVRCP, HFP, HSP
Supported Audio Format(s) SBC, AAC, LDAC
Supported Content
Protection SCMS-T
Charging Case
Battery Charge Time Approx. 3 hrs (USB charging)
Dimension Approx. 1.69 x 2.36 x 1.09"
Weight Approx. 1.23 oz
General Features
DSEE Extreme Yes
Driver Unit 0.2"
Frequency Response
(Bluetooth®
Communication)
20 Hz–20,000 Hz (44.1 kHz sampling) / 20 Hz–40,000 Hz (LDAC
96 kHz sampling 990 kbps)
Headphone Type Closed, dynamic
Magnet High-power neodymium magnets
Waterproof Yes (IPX4)
Noise Canceling
Ambient Sound Mode Yes
Quick Attention Yes
Size & Weight
Weight (Buds) Approx. 0.17 oz x2
1. Protection assured against water splashing from any angle, excluding the sound conduit (sound exit tube), ventilation
holes, and microphone holes in the unit of the headphones. The charging case is not water resistant.
2. Up to 6hrs (earbuds) + up to 14hrs (charging case), total of up to 20hrs when using Noise Canceling and Bluetooth
®
connection. To fully charge the LinkBuds, charge for 1.5 hours. To fully charge the case, charge for 3 hours. Actual
performance varies based on settings, environmental conditions, and usage.
3. Coating and adhesive materials excluded.
4. Tap on the left earbud to change from Noise Canceling to Ambient Sound and long tap for Quick Attention, or double tap on
the right to skip to the next track.
5. Download app at Google Play and the App Store. Network services, content, and operating system and software subject to
©2022 Sony Electronics, Inc. All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Sony and the Sony logo are trademarks and or registered trademarks of Sony Corporation. Bluetooth and the Bluetooth logo
are trademarks of Bluetooth SIG, Inc. All other trademarks are trademarks of their respective owners. Features and
specifications are subject to change without notice.
terms and conditions and may be changed, interrupted or discontinued at any time and may require fees, registration and
credit card information.
6. Need to set the function to “Priority on Sound Quality” using the Sony | Headphones Connect app. Compatible devices
supporting LDAC will be needed.
7. Activate the DSEE Extreme™ from the Sony | Headphones Connect app.
8. Set the function to “ON” from the Sony | Headphones Connect app. To deactivate Speak-to-Chat and return to your music
immediately, tap either the left or right touch panel. Otherwise, music will resume playing by default 15 seconds after your
conversation ends in Speak-to-Chat mode. This timeframe can be customized using the Sony | Headphones Connect app.
9. Google Assistant is only available for Android devices. The feature to activate Google Assistant by saying “OK Google” is
only available for Android devices. Google, Google Assistant and Android are trademarks of Google LLC. Amazon, Alexa
and all related logos are trademarks of Amazon.com, Inc. or its affiliates. The Google Assistant and Alexa are not available
in all languages and countries/regions. Install the Google Assistant app and set up with Sony | Headphones Connect app.
For Amazon Alexa, install the Amazon Alexa app and set up with Sony | Headphones Connect app.
10. Install the Auto Play app and set up with Sony | Headphones Connect app. Install the Spotify or Endel app and set up with
Auto Play app. Auto Play, Spotify and Endel services may not be available in some countries/regions.
11. Download Headphones Connect app at Google Play and the App Store. Network services, content, and operating system
and software subject to terms and conditions and may be changed, interrupted, or discontinued at any time and may
require fees, registration and credit card information. 360Reality Audio requires subscription to compatible online music
service and third-party terms, conditions, account and fees may apply.
12. 360 Spatial Sound personalizer requires the supplied transmitter (WLA-NS7)] and a BRAVIA XR TV model sold sep.
13. Interoperability and compatibility between Bluetooth® devices vary.
14. These features require connection to a compatible smartphone.
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