Sony ULT Field 3 SRS-ULT30
The Sony ULT Field 3 (SRS-ULT30) is a capable outdoor speaker that punches hard for its size with a 48W output and all-day IP67 durability. The shoulder strap and quick-charge make it especially practical for travel, though mono playback puts it behind stereo rivals at a similar price.
TechZonical Rating
4.2 / 5₹12,989
as of 7 Aug 2026
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At a Glance
Key Highlights
- ✓Type: Portable Bluetooth Speaker
- ✓Output Power: 48W¹
- ✓Battery Life: Up to 24 hours
- ✓IPX Rating: IP67
✓ Pros
- ✓Big, punchy bass output that outperforms most compact speakers in its price range.
- ✓Comfortable to carry all day thanks to the stowable shoulder strap.
- ✓Fully rugged IP67 build — genuinely waterproof, dustproof, and rustproof.
- ✓Quick-charge delivers two hours of playback from just 10 minutes of charge.
✕ Cons
- ✕Mono output means no stereo soundstage, even outdoors.
- ✕Bulkier and heavier than more pocketable alternatives at this price.
- ✕Several spec details (Bluetooth version, codecs, weight) are absent from the product listing.
Specifications
| Audio | |
| Type | Portable Bluetooth Speaker |
| Output Power | 48W¹ |
| Battery & Charging | |
| Battery Life | Up to 24 hours |
| Build | |
| IPX Rating | IP67 |
Specification Notes
- 1The manufacturer's individual product spec page was not directly accessible for verification. This output figure is from the product listing; it could not be confirmed whether it represents continuous RMS output or a peak rating.
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