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XB21 EXTRA BASS Portable Wireless Speaker



  • Boost your party anthems with EXTRA BASS
  • How LIVE SOUND mode works
  • Small on size, big on fun
  • Dual 1.65 in speaker units

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Boost your party anthems with EXTRA BASS Enhance every beat and give your party that extra boost thanks to EXTRA BASS .

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 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 1.65 in speaker units A 1.65 " speaker means powerful sound and bass.

Mica-reinforced speaker Made with Mica Reinforced Cellular (MRC), the rigid and lightweight speaker cone contributes to the sound quality.

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

Totally rustproof Your SRS-XB21 is uniquely rustproof, so not only does it look good, but you can also enjoy your product near the beach , but a little sea water will not rust the product.

Totally 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 rinsing it.

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 Up to 12 hours of battery means the SRS-XB21 can party even longer than you can. Even with the EXTRA BASS mode on, you can party for up to 10 hours

Wireless with BLUETOOTH® technology and NFC BLUETOOTH® streaming with NFC connectivity makes it simple to stream your party playlist.

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
  • How LIVE SOUND mode works
  • Small on size, big on fun
  • Dual 1.65 in speaker units
  • Mica-reinforced speaker
  • Light up the party
  • Give your party an extra boost with Party Booster
  • Get things booming with Wireless Party Chain
  • Control the party with the Sony Music Center app
  • Totally rustproof
  • Totally waterproof
  • Totally dustproof
  • Long battery life
  • Wireless with BLUETOOTH® technology and NFC
  • Easy button control
Speaker Type Full range
Speaker Size 1-5/8"
Sound Modes LIVE SOUND, EXTRA BASS , Standard
Dimensions (W x H x D) 7 5/8 in x 2 7/8 in x 2 5/8 in (193 mm x 72 mm x 65 mm)
Weight 1 lb 3 oz (530 g)
Hands-Free Function Yes
Communication System Version 4.2
Max. Communication Range 32.81 ft
Compatible Profiles A2DP / AVRCP / HSP / HFP / SPP
Supported Codecs SBC / AAC / LDAC
Frequency Transmission Range 20 Hz-20,000 Hz (44.1 kHz sampling)
Frequency Range 2.4 GHz band
Input and Output Terminals Stereo Mini Jack (IN), micro USB
Battery Life Approx.12 hours (Standard mode / Lighting off) Approx.10 hours (EXTRA BASS mode / Lighting on)
Water Protection IP67

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Electronics can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.