Design
| Volume i | 903.24 cm³ |
| Drivers count i | 2 (302 others) |
| Driver Unit Size i | 42 mm (3 others) |
| Control panel placed on a device i | ✔ (663 others) |
| Water resistance i | Water resistant (271 others) |
Sound quality
| Has a subwoofer i | ✔ (215 others) |
| Highest frequency i | 20000 Hz (353 others) |
| Lowest frequency i | 20 Hz (81 others) |
| Has A Passive Radiator i | ✔ (328 others) |
| Number of microphones i | 1 (278 others) |
Power
| Battery Power i | 2700 mAh (3 others) |
| Battery Life i | 12 hours (66 others) |
| Charge time i | 4 hours (69 others) |
| Has a battery level indicator i | ✔ (448 others) |
| Has a rechargeable battery i | ✔ (537 others) |
Connectivity
| Bluetooth Version i | 4.2 (119 others) |
| Supports bluetooth pairing using nfc i | ✔ (117 others) |
| Has an aux input i | ✔ (480 others) |
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Frequently Asked Questions
What is the lowest frequency of the Sony SRS-XB21?
At 20 Hz, the Sony SRS-XB21 is 83% below the category average for lowest frequency, ranking #407 out of 502 — see ranking single speaker products.
What is the driver unit size of the Sony SRS-XB21?
At 42 mm, the Sony SRS-XB21 is 34% below the category average for driver unit size, ranking #288 out of 390 — see ranking single speaker products.
How big is the Sony SRS-XB21 battery?
At 2700 mAh, the Sony SRS-XB21 is 31% below the category average for battery capacity, ranking #143 out of 299 — see ranking single speaker products.
What is the battery life of the Sony SRS-XB21?
At 12 hours, the Sony SRS-XB21 is 21% below the category average for battery life, ranking #212 out of 432 — see ranking single speaker products.
What is the drivers count of the Sony SRS-XB21?
At 2, the Sony SRS-XB21 is 17% below the category average for drivers count, ranking #154 out of 577 — see ranking single speaker products.
How long does the Sony SRS-XB21 take to charge?
At 4 hours, the Sony SRS-XB21 is 13% above the category average for charge time, ranking #227 out of 374 — see ranking single speaker products.
How does it compare?
How does the Sony SRS-XB21's battery capacity compare to similar single speakerss?
At 2700 mAh, the Sony SRS-XB21 trails the Bang & Olufsen Beosound A5 (7200 mAh) by 63%.
How does the Sony SRS-XB21's charge time compare to similar single speakerss?
At 4 hours, the Sony SRS-XB21 trails the Libratone Zipp 2 (1.5 hours) by 63%.
How does the Sony SRS-XB21's lowest frequency compare to similar single speakerss?
At 20 Hz, the Sony SRS-XB21 trails the Anker Soundcore Motion Plus (50 Hz) by 60%.
How does the Sony SRS-XB21's driver unit size compare to similar single speakerss?
At 42 mm, the Sony SRS-XB21 trails the Libratone Zipp 2 (101.6 mm) by 59%.
How does the Sony SRS-XB21's drivers count compare to similar single speakerss?
At 2, the Sony SRS-XB21 trails the Anker Soundcore Motion Plus (4) by 50%.
How does the Sony SRS-XB21's highest frequency compare to similar single speakerss?
At 20000 Hz, the Sony SRS-XB21 trails the Anker Soundcore Motion Plus (40000 Hz) by 50%.