SONY WFL900-W LinkBuds Truly Wireless Earbuds User Manual

: June 9, 2024
: Sony

Table of Contents

Bullets
Features
Specification
References
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SONY WFL900-W LinkBuds Truly Wireless Earbuds User Manual

Link your online and offline worlds with headphones that keep you in both. The all-new Sony LinkBuds feature a comfortable open-ring design that naturally blends natural and digital sound. Stay authentically connected to everyday life while listening to music, taking calls, gaming, and more, all with dynamic sound.

Bullets

Connect your online and offline worlds
Unique open ring driver links your content and what’s happening in your surroundings
Crystal-clear conversations with high quality sound
Integrated V1 Processor for balanced high-quality sound
Precise Voice Pickup technology for crystal clear phone calls
Up to 5.5 hours of battery and a total of up to 17.5 hours with the charging case 4
IPX4 splash-proof and sweat-proof design 1
Ultra-small and light for a fit that stays all day
Control audio by tapping in front of your ears
Adaptive Volume Control optimizes sound to your environment

Features

Every world. Always on.

LinkBuds connect all your worlds perfectly with an open-ring design that allows you to hear calls, listen to music, play games, and hear other types of online content anytime, all while remaining naturally connected to the ambient sounds around you.

Connected and aware

A newly developed ring-type driver unit with the center of the diaphragm open for audio transparency allows you to clearly hear all of the real-world sounds happening around you.

Wide Area Tap

Even with the small size of LinkBuds, they’re still incredibly easy to operate with Wide Area Tap. With this feature, you can double or triple tap the area in front of either ear to control your music playback. You never even need to touch LinkBuds to operate them.

Adaptive Volume Control

Adaptative Volume control automatically optimizes volume based on your environment. LinkBuds adjusts to lower volume in quieter places and higher volume in noisier situations

Authentic and natural sound

Our Integrated Processor V1 reproduces all the detail in your music with minimal distortion for an authentic listening experience. Enjoy well-balanced, high-quality sound with a clear mid-high range.

DSEE – Give your favorite music a boost

When an original musical source is compressed our Digital Sound Enhancement Engine faithfully restores music to high-quality sound that’s closer to the original recording.

Crystal clear calling

Precise Voice Pickup technology optimally controls multiple microphones and performs advanced voice signal processing that allows the person on the other end of calls to hear you clearly, even through noisy surroundings.

360 Spatial Sound Personalizer

With the Sony | 360 Spatial Sound Personalizer, you’ll enjoy a sound experience that’s optimized for you. The app captures and analyses your ear shape, allowing these headphones to create your own personal spatial sound field when paired with BRAVIA XR TVs. 7

Battery life

Use the LinkBuds during your entire workday. With up to 5.5 hours of battery life and a total of up to 17.5 hours with charging case 3 , you’ll always have your digital world with you. Quick charging gives you up to 90 minutes of playback after just a 10 minute charge.

IPX4 splash-proof and sweat-proof design

With IPX4 splash resistance and long battery life, LinkBuds keep you ready for anything that life brings. 1

Fast pairing

Enjoy fast pairing capability through LinkBuds support with Google’s new Fast Pair feature. Quickly and effortlessly pair your LinkBuds with your Android device with just a simple tap. You can also easily locate your headphones by pinging them or checking their last known location on your smartphone. 2

Speak to Chat

With the Speak to Chat feature, the LinkBuds will automatically pause your audio as soon as you speak to someone so you can effectively have a conversation without taking the headphones out and will resume playing your audio. 4,5

Environmentally Friendly Design

The LinkBuds are packaged with the environment in mind, using recycled plastic materials that come from automobile parts and plastic free packaging that reflects our commitment to reducing the environmental impact of our products. 8

Bluetooth

For low latency and high sound quality even around other interference, the Bluetooth ® signal is transmitted to both ears at the same time. Thanks to the powerful Integrated Processor V1, you’ll enjoy stable, skip-free, wireless sound. LinkBuds are compatible with LE Audio, a next generation Bluetooth® audio that enables lower latency, suitable for gaming and watching videos, stereo playback for in-game chat, and audio sharing from a single phone. 2

Charging case

An ultra-small, stylish, rounded charging case design allows the charging case to fit comfortably in your hand and your pocket.

Voice Assistant compatible

One simple button press connects you instantly to your smartphone’s voice assistant so you can find directions, play music, communicate with contacts and so much more. 6

Spotify Tap

With Quick access, you can configure LinkBuds to resume Spotify playback with just a couple of taps –taps – no need to touch your smartphone. 9

Ideal form factor for always on listening

Ultra-small and light for a fit that stays all day

Specification

Battery

Battery Life (continuous communication time)| Max. 2.5 hrs
Battery Charge Method| USB Charging (with Case)
Battery Life (Waiting Time)| Max. 10 hrs
Battery Life (continuous music playback time) (Buds+Case)| Max. 17.5hrs (5.5hrs+12hrs)
Bluetooth® Specification

Bluetooth® version| Bluetooth Specification Version 5.2
Effective Range| 32.81 ft
Frequency Range| 2.4 GHz band (2.4000 GHz–2.4835 GHz)
Profile| A2DP, AVRCP, HFP, HSP
Supported Audio Format(s)| SBC, AAC
Supported Content Protection| SCMS-T
Charging Case

Dimension| Approx. 1.63 x 1.91 x 1.22″ (41.4 x 48.5 x 30.9 mm )
Weight| Approx. 1.2 oz (34 g)
General Features
DSEE| Yes
Frequency Response (Bluetooth® Communication)| 20 Hz–20,000 Hz (44.1 kHz sampling)
Headphone Type| Open, Dynamic
Magnet| High-power neodymium magnets
Waterproof| Yes (IPX4)
Size & Weight
Weight| Approx. 0.14 oz (4.1 g) x2
HPC Supported Function

Protection assured against water splashing from any angle, excluding the sound conduit (sound exit tube), ventilation holes, and microphone holes in the unit (2 locations) of the headphones. The charging case is not water resistant.
Interoperability and compatibility between Bluetooth ® devices vary.
Up to 5.5hrs (earbuds) + up to 12hrs (charging case ), total up to 17.5hrs when using 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.
Set the function to “ON” from the Sony | Headphones Connect app. In rare cases, Speak-to-Chat may unintentionally start up in response to vibrations caused by devices such as electric toothbrushes, electric shavers, and activities such as brushing teeth, coughing or humming.
To deactivate Speak-to-Chat and return to your music immediately, tap either the left or right touch panel. 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.
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.
360 Spatial Sound personalizer requires the supplied transmitter (WLA-NS7)] and a BRAVIA XR TV model sold sep.
Coating and adhesive materials excluded.
Download 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.
Requires having the app installed on your iOS device. Please see details on https://apps.apple.com/app/id1240320677 Microsoft and Soundscape are trademarks of the Microsoft group of companies.
Please go to the following URL link to view the LinkBuds and Soundscape concept video and experience. https://www.sony.com/en/SonyInfo/accessibility/initiatives/#LinkBuds
XS-size fitting supporters are shown in this image. Default is M-size.
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.

©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.