Your own portable music festival

Throw the SRS-XB21 in your bag, grab your friends and start the party wherever you go. With EXTRA BASS™, live music sound, and party lights, it's the mini music festival that you can take with you.


XB21 EXTRA BASS™ Portable BLUETOOTH® Speaker


Picture of XB21 EXTRA BASS™ Portable BLUETOOTH® Speaker


P 5,829.00

Lose yourself in the feeling

See for yourself how the SRS-XB21 gives you the feeling of being there. All you have to do is bring your friends.


Boost your party anthems with EXTRA BASS™️

Enhance every beat and give your party that extra boost thanks to EXTRA BASS™️. 

Live music experience

Hear your music in a whole new way with LIVE SOUND mode. Bring your party to life with a unique three-dimensional sound experience and create festival vibes wherever you go.

How LIVE SOUND mode works

The speakers of the SRS-XB21 are carefully designed to give you a real, three-dimensional experience. The blue lines show how the angled speakers with new DSP technology send your music to a wider area, creating a festival vibe wherever you are.

Small on size, big on fun

The compact SRS-XB21 fits easily in your bag. You can even pop it in the bottle-holder of your bike — so the party goes wherever you go.

Sound that takes your party to the next level

Close detail shot of SRS-XB21 speaker

Light up the party

There’s no fun without party lights and the SRS-XB21 has just the thing—flashing new line lights that sync to the beat of your favorite tracks.

Give your party an extra boost with Party Booster

Simply tap your speaker in different places to make different sounds—like a scratch, snare, kick drum and cowbell. Control the volume with force, tap gently for a soft sound or give it a good hit for a loud output.

Get things booming with Wireless Party Chain

Enjoy the same song with Wireless Party Chain. Connect up to 100 wireless speakers with BLUETOOTH® technology and the music and lights sync up so everyone dances to the same beat.  

Range of Sony-compatible speakers including SRS-XB21 speaker
SRS-XB21 speaker with smartphone mobile device

Control the party with the Sony | Music Center app

Control the party from the dancefloor, with the Sony | Music Center app — select your favorite playlists, cue the next song, and change lighting patterns and sound modes.

Ready for the pool and the beach

A new fabric design — not only looks good, but is tough enough to take whatever you throw at it.

Waterproof SRS-XB21 speaker

Totally rustproof

Your SRS-XB21 is uniquely rustproof, so not only does it look good, but dropping it in the sea won’t cause any problems. 

Rustproof SRS-XB21 speaker

Totally washable and waterproof

With an IP67 rating, your speaker can be immersed in water and thanks to the high-quality fabric made exclusively in Japan, you’ll no problems washing it. 

SRS-XB21 speaker product shot beach setting

Totally dustproof

Thanks to the IP67 rating, you can take your speaker to the beach, the rainforest, the desert, or wherever you like—the SRS-XB21 will keep on playing, no matter how dusty the surface.

12-hour battery life logo

Lasts all night long

A 12-hour battery means the SRS-XB21 can party even longer than you can.

Shock test icon

1.2 m shock proof

The system passes the drop test from 1.22m on plywood of 5cm thickness conforming to MIL-STD 810 F Method 516.5-Shock. 

Easy to stream, easy to control

SRS-XB21 connected to smartphone device

Wireless with BLUETOOTH® technology and NFC™

BLUETOOTH® streaming with NFC™ connectivity makes it easy to stream your party playlist.

SRS XB-21 multifunction button

Easy button control

No need to rely on another device to operate your SRS-XB21. Do everything you need with just the buttons on your speaker.

Specifications and Features
Get the most out of your party experience with the SRS-XB21 portable wireless speaker. Give your music an extra boost with Party Booster, LIVE SOUND and new line lights.
  • EXTRA BASS™ sound with LIVE SOUND mode

  • Sound effects with Party Booster.

  • Elevate your party with flashing lights

  • Waterproof and dustproof (IP67 rated)

  • Up to 12 hours of battery life

Speaker Type
Full range
Speaker Size
42 mm
Battery Life
12 hrs (standard mode/lighting off)
Input and Output Terminals
Stereo Mini Jack (IN), micro USB
Frequency Transmission Range
20 Hz–20,000 Hz (44.1 kHz sampling)

What's in the Box

Micro USB Cable

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