Sony WFSP900B True Wireless Waterproof Sports Headphones
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Sony WFSP900B True Wireless Waterproof Sports Headphones

Packed with technology and clever design to give you the ultimate sports performance, whatever you want to do


Salt water proof, truly wireless sports headphones with 4GB of storage.

  • Complete wireless freedom for all your sporting needs with an IPX8 waterproof / weatherproof rating
  • 4GB of internal memory so you can playback music without having to take your phone with you
  • 6 hours of playback from internal memory, with 3 hours playback from bluetooth, with 3 charges in the case
  • Wide range of usability features including touch controls, stereo calling and Google Assistant compatibility
Available in multiple colours
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Stream with BLUETOOTH® technology

Connect manually with BLUETOOTH® technology, or at a touch with NFC™ on the case.

4GB of on-board storage

There’s room for up to 920 songs[FN|For MP3 files at 128kbps] with 4GB of internal storage.

Waterproof even in the ocean

The WF-SP900 headphones love the water with IPX5/8 waterproof rating, for both fresh and salt water, letting you dive down to 2m[FN|For 30 minutes][FN|The charging case is not waterproof or IP rated.].

Earpieces for swimming

Use the swimming earpieces when you're heading into the water for a watertight fit.

Round-the-neck leash cord

The WF-SP900s come with a round-the-neck leash cord for extra peace of mind in the water.


With a dustproof IP6X design, the WF-SP900s are ready for anything.

Move the earpiece to fit

Everyone’s ears are different, so the earpieces on the WF-SP900s adjust to the perfect insertion depth to fit.

Arc supporters hold earpieces in place

No matter how intense it gets, the earpieces will stay in place thanks to a redesigned arc supporter.

Stay aware with Ambient Sound and Voice mode

Ambient Sound Mode keeps you in the moment while you’re moving. Mixing the music you love with the sounds of your environment, enjoy your favourite tracks and still hear what’s happening around you. Or choose Voice Mode, which lets you hear announcements and other voices.

Up to 12 hours’ battery life over BLUETOOTH® connection with charging case

Fully charged, the headphones let you stream 3 hours of music over a BLUETOOTH® connection. The carrying case holds three more full charges, giving you up to 12 hours of playback.

Up to 21 hours’ battery life when listening from on-board storage with charging case

If you’re listening to music saved on the 4GB on-board storage you can listen for up to 6 hours at a time. The carrying case holds three more full charges, giving you up to 21 hours of playback.

Tap and button operation

A double tap on the left side of the earpieces turns volume down and a double tap on the right turns volume up. Press the left button once to turn Ambient Sound Mode on or off or twice to turn Quick Sound Settings on or off. With the right button you can play and pause, skip to the next song, rewind, take calls, long press for your voice assistant, and more.

Sony Headphones | Connect App

With the Sony | Headphones Connect app you can turn Ambient Sound Mode on or off, switch between normal and voice mode, set equalizer for Quick Sound Settings and more.

Sony Music | Center App

Sony | Music Center for mobile lets you see what song’s playing – whether streaming or stored on the headphones. You can also control music playback – play, pause or change playback modes. With Sony | Music Center for PC you can transfer songs for storage mode.

Launch your voice assistant

Launch Google™ app or activate Siri, from a long push of a button on your headphones.


Size & Weight
Approx. 7.3g x 2 (not including the arc supporters)
General Features
Headphone Type
Closed Balanced Armature
Driver Unit
Balanced Armature
Frequency Response(Bluetooth® Communication)
20Hz - 20, 000Hz (44.1kHz Sampling)
Volume Control
Yes (Tap sensor)
IPX5 / IPX8 (Headset only)
Yes (Charging Case)
Normal / Repeat / Shuflle / Shuffle all / Repeat 1 Song / Folder / Playlists / Album
MP3 ( .mp3) WMA ( .wma) FLAC ( .flac) WAV ( .wav) AAC ( .mp4, .m4a, .3gp)
Battery Charge Time
Approx. 2.5 Hours (Full charge )
Battery Charge Method
USB charging (with Charging Case)
Battery Life(continuous music playback time)
Max. 3 Hours (Ambient sound mode OFF ) *via Bluetooth playback
Max. 6 Hours (Ambient sound mode OFF) *internal memory playback
Max. 2.5 Hours
Bluetooth® Specification
Bluetooth® version
Bluetooth Specification Version 4.0
Effective Range
Line of sight approx.30ft (10m)
Frequency Range
2.4GHz band (2.4000GHz-2.4835GHz)
A2DP (Advanced Audio Distribution Profile) , AVRCP (Audio Video Remote Control Profile) , HFP (Hands-free Profile) , HSP (Headset Profile)
Supported Audio Format(s)
Supported Content Protection
Charging Case
Battery Charge Time
(Approx.) 3.5 hrs
75g (Approx.)
Approx. 71.5 x 61.5 x 38.4mm