XB21 EXTRA BASS™ Portable BLUETOOTH® Speaker Red
SRS-XB21
XB21 EXTRA BASS™ Portable BLUETOOTH® Speaker Red
SRS-XB21
XB21 EXTRA BASS™ Portable BLUETOOTH® Speaker Red
SRS-XB21
XB21 EXTRA BASS™ Portable BLUETOOTH® Speaker Red
How LIVE SOUND mode works
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 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
Small on size, big on fun
The compact SRS-XB21 fits easily in your bag. You can even pop it in the cupholder of your bike - so the party goes wherever you go.
Dual 42mm speaker units
Dual 42mm speaker units
A 42mm speaker means powerful sound and bass.
Mica reinforced speaker
Mica reinforced speaker
Made with Mica Reinforced Cellular (MRC), the rigid and lightweight speaker cone contributes to the sound quality.
Light up the party
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 favourite tracks.
Give your party an extra boost with Party Booster
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
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.  
Control the party with the Sony | Music Center app
Control the party with the Sony | Music Center app
Control the party from the dancefloor, with the Sony | Music Center app - select your favourite playlists, cue the next song, change lighting patterns and sound modes.
Totally rustproof
Totally rustproof
Your SRS-XB21 is uniquely rustproof, so not only does it look good, but you can also drop it in the sea without a problem. 
Totally washable<sup>1</sup> and waterproof
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, there'll be no problem washing it. 
Totally dustproof
Totally dustproof
Thanks to the IP67 rating, you can take your speaker to the beach, the forest, the desert, or wherever you like - the SRS-XB21 will keep on playing, no matter how dusty the surface.
Long battery life
Long battery life
Up to 12 hour battery means the SRS-XB21 can party even longer than you can.
1
Even with the EXTRA BASS mode on, you can party for up to 10 hours
2
Wireless with BLUETOOTH® technology and NFC™
Wireless with BLUETOOTH® technology and NFC™
BLUETOOTH® streaming with NFC™ connectivity makes it simple to stream your party playlist.
Easy button control
Easy button control
No need to rely on a device to operate your SRS-XB21. Do everything you need with just the buttons on your speaker.
Boost your party anthems with EXTRA BASS™
Boost your party anthems with EXTRA BASS™
Enhance every beat and give your party that extra boost thanks to EXTRA BASS™. 
SRS-XB21
XB21 EXTRA BASS™ Portable BLUETOOTH® Speaker Red



SRS-XB21
XB21 EXTRA BASS™ Portable BLUETOOTH® Speaker Red
EXTRA BASS™ sound with LIVE SOUND mode
Sound effects with Party Booster.
Lift up your party with flashy lights
Waterproof and dustproof (IP67 rated)
Up to 12 hours of battery life(EXTRA BASS:Up to 10 hours)
Speaker Type
Full range
Speaker Size
42mm
Battery Life
Approx.12 hours (Standard mode / Lighting off) Approx.10 hours (EXTRA BASS mode / Lighting on)
Input and Output Terminals
Stereo Mini Jack (IN) ,micro USB
Frequency Transmission Range
20 Hz - 20,000 Hz (44.1 kHz sampling)
Micro USB Cable
Sound
Speaker TypeFull rangeSpeaker Size42mm
Sound ModesLIVE Sound, EXTRA BASS™,Standard
Size & Weight
Dimensions (W x H x D)193 x 72 x65 mm(7 5/8in x 2 7/8in x 2 5/8in)
Weight530g(1 lb 3 oz)
Wireless Connections
NFCYes
Hands-Free FunctionYes
Bluetooth
Communication SystemVersion 4.2Max. Communication Range10mCompatible ProfilesA2DP / AVRCP / HSP / HFP / SPP
Supported CodecsSBC / AAC / LDACFrequency Transmission Range20 Hz - 20,000 Hz (44.1 kHz sampling)Frequency Range2.4GHz band
Interface
Input and Output TerminalsStereo Mini Jack (IN) ,micro USB
General Features
Battery LifeApprox.12 hours (Standard mode / Lighting off) Approx.10 hours (EXTRA BASS mode / Lighting on)
Water ProtectionIP67
SRS-XB21
XB21 EXTRA BASS™ Portable BLUETOOTH® Speaker Red
1 If the surface of the system gets dirty, do not use detergent, thinner, benzine, alcohol, etc. to clean and do not brush the system. Whether you can completely wash it off or not, depends on the dirt or stain.

2 When lighting is off in STANDARD sound mode, and the volume is set to approximately half the maximum level. The sound mode and lighting settings require changing from the factory defaults. Refer to the Operating Instructions and the Help Guide for how to change the settings. Actual performance may vary from the listed time due to the volume, songs played, surrounding temperature, and usage conditions.

3 When lighting is on in EXTRA BASS sound mode (factory defaults) and the volume is set to approximately half the maximum level. Actual performance may vary from the listed time due to the volume, songs played, surrounding temperature and usage conditions.

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