Sony Black WI-XB400 EXTRA BASS™ Wireless In-ear Headphones
Sony Black WI-XB400 EXTRA BASS™ Wireless In-ear Headphones 0
Sony Black WI-XB400 EXTRA BASS™ Wireless In-ear Headphones 1
Sony Black WI-XB400 EXTRA BASS™ Wireless In-ear Headphones 2
Sony Black WI-XB400 EXTRA BASS™ Wireless In-ear Headphones 3
Sony Black WI-XB400 EXTRA BASS™ Wireless In-ear Headphones 4

Sony Black WI-XB400 EXTRA BASS™ Wireless In-ear Headphones

Model #: WIXB400/B
At a Glance
The WI-XB400 are fully wireless, effortlessly portable and deliver deep, punchy sound. The headphones come with 15 hours of charge and a silicone neckband, so they’ll slip right into your pocket or bag.
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Get to know this product.

  • EXTRA BASS™ for deep, punchy sound
  • Wireless Bluetooth® connection for unrestricted movement
  • Up to 15 hours of battery life and quick charging
  • Easy hands-free calling and voice assistant commands with microphone
  • Comfortable neckband style with magnetic buds for easy carrying

Lightweight headphones with EXTRA BASS™ for a deep, punchy sound

As part of the EXTRA BASS™ range from Sony, the WI-XB400 headphones enhance all your low-end frequencies for exceptional bass, while maintaining vocal clarity, lifting every track with wave after wave of thundering rhythm.

Wireless streaming

Stream your favorite tracks from a paired smartphone or tablet with Bluetooth® wireless technology.

Enjoy up to 15 hours of non-stop music

With up to 15 hours of playback when fully charged, you can listen to your favorite playlists throughout the day.

Power up with quick charge

When your battery runs low, just 10 minutes of charging will get you 60 minutes of playback with the Type-C™ cable. This means that you’ll soon be ready to get the music going again, even if you’re in a rush.

Magnetic buds for easy carrying

Each earbud has a built-in magnet for tangle-free carrying and storage. It keeps you clutter-free when you’re not listening to music.

Listen in comfort, anywhere, anytime

The soft, flexible and lightweight neckband is shaped for comfortable, all-day wearing. And when you’ve finished listening, you can roll or wrap up your headphones for easy storage in your bag or pocket.

Easy hands-free calling

Conversation flows freely with easy hands-free calling, thanks to the built-in microphone. No need to even take your phone from your pocket.

Easy operation with buttons

Use the buttons to play, stop or skip through tracks and adjust the volume.

Voice-assistant compatible

A simple button press connects you to your smartphone's voice assistant to get directions, play music, and communicate with contacts2.



Weight0.74 oz
Headphone TypeClosed Dynamic
Driver Unit0.47 "
Frequency Response (Bluetooth® Communication)20 Hz–20,000 Hz (44.1 kHz Sampling)
Volume ControlYes
Wearing StyleNeckband style
Battery Charge TimeApprox. 3 hrs (Full charge)
Battery Charge MethodUSB type-C
Battery Life (Continuous Music Playback Time)Max. 15 h (Full charge)
Battery life (Continuous Communication Time)Max. 15 h (Full charge)
Battery Life (Waiting Time)Max. 200 h (Full charge)
Bluetooth® VersionBluetooth Specification version 5.0
Effective RangeLine of sight approx. 30 ft (10 m)
Frequency Range2.4 GHz band (2.4000–2.4835 GHz)
Support Audio Format(S)SBC, AAC
Supported Content ProtectionSCMS-T
What's In The BoxUSB cable: USB Type-C TM (Approx. 7.87 ")

Misc. Specs

Frequency Response20 Hz–20,000 Hz (44.1 kHz Sampling)
Sport HeadphoneNo
Battery Life (Hr.)15
Bluetooth Version5.0
Color Finish NameBlack
Bluetooth CapableYes
WarningProposition 65 Warning for California Residents