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The Sony ULT FIELD 3 is a portable Bluetooth speaker built around a two-way active design, with a dedicated driver for bass and a separate tweeter for clarity. It is sized to carry in one hand and includes a stowable shoulder strap, and it is rated waterproof and dustproof for outdoor use. Its ULT button boosts low-end punch, which sets it apart from smaller, bass-light portables. Owners rate it highly for sound and portability, though some note the bass boost can overwhelm detail at high volume.
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Lowest price we've seen: $124.99 on Nov 13 at Newegg. Tracked across 17 stores since Nov 13.
Owners rate the ULT FIELD 3 highly, praising its punchy bass, rugged build and easy carrying. Some say the ULT boost trades clarity for volume, and a few wish the battery lasted longer at high output.
The Sony ULT FIELD 3 is a portable wireless speaker with a 2-way active design. It is built to deliver powerful bass and connects over Bluetooth.
It is designed to be carried in one hand. A stowable shoulder strap is included for easier transport. The speaker is waterproof and dustproof, and it is suited to outdoor use.

