Sony ULT Field 1 Wireless Bluetooth Speaker - Forest Gray (Renewed)

Our review of the Sony ULT Field 1 finds a compact, rugged Bluetooth speaker aimed at listeners who want punchy low end in a take-anywhere package. The single biggest reason to buy is its ULT bass boost button, which reliably adds extra weight to bass-heavy tracks without needing external EQ. This renewed unit pairs easily with phones and tablets, delivers surprisingly wide sound for its size thanks to the sound diffusion processor, and is built to handle outdoor use with an IP67 rating and salt water resistance.

Key Features

• ULT Button: Press once to engage enhanced bass that makes hip hop and electronic tracks sound fuller and more impactful.
• Sound Diffusion Processor: Sony's DSP technology spreads audio more evenly so this compact speaker fills small to medium spaces with surround-like sound.
• IP67 Protection: Waterproof, dustproof and rustproof construction lets you use the speaker at the beach, pool, or on outdoor trips without worry.
• Salt Water Resistant: Designed to withstand exposure to salt air and occasional splashes so beach use is practical and low risk.
• Portable Design: A multi-way strap and compact footprint make it easy to carry or attach to a bag for on-the-go listening.
• Shockproof Build: The durable housing tolerates knocks and bumps common to outdoor and daily use.

Who It's For

This speaker is best for listeners who want heavy-hitting bass from a small Bluetooth speaker and plan to use it outdoors or on the move. Commuters, beachgoers, and anyone who values a durable, water-resistant design will appreciate the combination of portability and robust protection.

Those seeking studio-accurate, flat response or very high maximum volume for large parties should look elsewhere; this model favors enhanced bass and convenience over neutral reference sound or auditorium-level output.

Pros & Cons

Pros

• Strong, focused bass when the ULT button is engaged, improving impact on bass-forward tracks.
• Impressive perceived size of sound for a compact speaker due to the sound diffusion processor.
• Durable IP67-rated construction plus salt water resistance makes it dependable outdoors.
• Easy Bluetooth pairing and straightforward controls make daily use simple and reliable.

Cons

• Not a substitute for larger speakers if you need very high volume or neutral studio sound.
• Renewed units may show minor cosmetic wear even though functionality is intact.

Specifications

Brand	Sony
Model	ULT Field 1 (renewed)
Waterproof / Dustproof	IP67 rated, salt water resistant
Special Feature	ULT bass boost button
Processor	Sound diffusion processor (DSP)
Durability	Shockproof, rustproof construction
Portability	Compact size with multi-way strap

Our Verdict

The Sony ULT Field 1 renewed unit is a sensible buy for anyone who wants portable, rugged audio with extra bass on demand. It offers strong value through durable waterproof construction, easy Bluetooth connectivity, and a sound diffusion processor that makes it seem larger than it is, making it a good choice for outdoor listening and everyday use.

Frequently Asked Questions

Does the speaker work at the beach?
Yes. It is IP67 rated and salt water resistant, so beach use and exposure to splashes are supported.

Can the bass be turned on or off?
Yes. The ULT button engages enhanced bass when you want more low end and can be left off for a more neutral balance.

Is this model durable for outdoor use?
Yes. The speaker is waterproof, dustproof, shockproof and rustproof, designed for outdoor and travel use.