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Sony ULT Field 3 Wireless Portable Bluetooth Speaker, IP67 Waterproof, Dustproof, Rustproof, and Shockproof with Enhanced Bass, 24 Hour Battery and Shoulder Strap (SRSULT30B), Black

  • Based on 69 reviews
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Style: Black


Features

  • ULT BUTTON: Boost the bass with the press of the ULT button, delivering enhanced sound depth for your favorite tracks.
  • SHOULDER STRAP: Designed for easy portability, the included stowable shoulder strap makes carrying your speaker effortless.
  • PARTY CONNECT: Link multiple compatible speakers together for synchronized sound and an epic party atmosphere.
  • WATERPROOF, DUSTPROOF, and SHOCKPROFF: With IP67 ratings, this speaker is designed to handle the toughest conditions, from beaches to hikes.
  • UP TO 24 HOUR BATTERY LIFE & QUICK CHARGING: Long-lasting power to keep the music going, no matter where you are. Just 10 minutes of charging provides up to 120 minutes of playtime, ensuring youre always ready to go.
  • 7-BAND EQUALIZER: Customize your audio experience with the 7-band EQ, allowing you to fine-tune sound for optimal clarity, depth, and balance.
  • EXCEPTIONAL CALL CLARITY: Enjoy crystal-clear calls, effortless Bluetooth connectivity, and intuitive features for smooth operation.
  • ENHANCED BASS POWER: Experience greater power, increased sound pressure, and truly immersive bass for a full audio experience.
  • 2-WAY ACTIVE DESIGN: Features a dedicated woofer and tweeter for optimal audio performance across all frequencies.
  • GRAB AND GO DESIGN: Compact and lightweight, the ULT FIELD 3 is built for easy handling and mobility.

Description

Powerful bass from a portable speaker. The ULT FIELD 3 is designed to be carried in one hand and comes with a stowable shoulder strap to make it easy to transport. It's also waterproof and dustproof, so that you can take your favorite music to the beach and beyond.

Brand: Sony


Frequency Response: 2.4 GHz


Connectivity Technology: Bluetooth


Audio Output Mode: Stereo


Mounting Type: Free Standing


Model Name: ULT FIELD 3


Speaker Type: Portable Speaker


Special Feature: Bass Boost, Portable, Waterproof, Lightweight, Built In Microphone, Dustproof, Shockproof, USB Port


Recommended Uses For Product: For Smartphones or Tablets, For Music Players


Compatible Devices: MP3 Player, Smartphone


Unit Count: 1.0 Count


Color: Black


Battery Life: 24 Hours


Included Components: USB Type-C® Cable, Speaker, Strap belt


Product Dimensions: 3.11"D x 10.08"W x 5.24"H


Age Range (Description): Adult


Item Weight: 2.7 Pounds


Is Waterproof: True


Warranty Type: Limited


Number of Items: 1


Control Method: App, Push Button


Wireless Communication Technology: Bluetooth


Power Source: Battery Powered


Water Resistance Level: Water Resistant


Number of Batteries: 1 9V batteries required. (included)


Connectivity Protocol: Bluetooth


Number of USB 2 Ports: 1


Specific Uses For Product: Travel, Party


UPC: 027242931886


Style: Black


Indoor/Outdoor Usage: Outdoor, Indoor


Manufacturer: Sony


Item Weight: 2.69 pounds


Country of Origin: China


Item model number: SRSULT30B.UC


Batteries: 1 9V batteries required. (included)


Date First Available: April 9, 2025


Frequently asked questions

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Top Amazon Reviews


  • Great Sound for the size
Style: Off White
Sounds great, great battery life. Really happy with this purchase so far.
Reviewed in the United States on June 14, 2025 by Sam Sierra

  • Sony
Style: Forest Gray
Has good sound, but I was hoping for more bass.
Reviewed in the United States on May 5, 2025 by Rick Willows

  • Get it, you won’t be sorry nor regretful
Style: Forest Gray
Amazing!!
Reviewed in the United States on June 11, 2025 by Marco Gonzalez

  • Buen parlante
Style: Forest Gray
Muy buen parlante, buen sonido. Todo llegó en excelente estado.
Reviewed in the United States on June 2, 2025 by Cristhian

  • Sleek Design, Loud Volume, and Lacks Bass
Style: Black
This is my first Bluetooth speaker, so I don’t have a large personal collection to compare it to. However, I’ve listened to many different models owned by friends and made this purchase after a lot of thinking in-terms of what I wanted. Pros of this speaker: - Really solid design and minimalist design, which is the main reason I bought this. I am not someone for odd shaped speakers, plus this fits almost everywhere because of the boxy design. - The perfect size that strikes a good balance between portability and sound output - Can get really loud, I didn't dare to try playing it at full volume - Decent app, functional and easy to use - Pretty lightweight (maybe not a good thing for speakers) Cons: - Lacks bass. Honestly for something that is advertised for bass with a $200 price tag, you'd expect..bass. If you can bear the design then just go for HK Onyx, or Bose speakers. This to me is the biggest drawback of the speaker. - As other reviews have mentioned, it sounds like a tin can without the ult button. - Finicky strap design. Someone said they were planning to cut it off, I would say they weren't lying. It definitely is difficult to take the strap off. - Doesn't turn on via app, even with bluetooth standby on. Unless its plugged in. I've seen UE Booms do this effortlessly and it seemed so convenient. TLDR: Design, shape, build quality, volume output really good. Bass not so good. ... show more
Reviewed in the United States on May 29, 2025 by Ziaur R. Ziaur R.

  • $199 for an ULT button? Hmmm...
Style: Forest Gray
No. This is a tin can without the ULT button, kind of like a veil trying not to reveal what it really does without the boost button. It's sounds OK with it on. The eq in the app does little to sway my attention from my JBL charge 6. Handy speaker fits in your hand, as well as being carried with included strap. I own the ULT headphones, and I love those. This speaker doesn't come close to the sound, nor do what my JBL speaker does. The JBL Flip series sounds better than this speaker. Even when they are played at a low volume. When you walk away to another room, you know something is on but you barely hear it. When you return to the desk, you receive full sound. Thats what a good quality speak should do. This speaker is for if you just need a bluetooth speaker to play your music, not concerned about how you want to hear your misic. If you really like spacial audio and decent bass response without all the bells and whistles, save your money. Maybe the Field 5 sounds better, but so far not really looking to add any mid-size Sony speakers to my collection. Ever. ... show more
Reviewed in the United States on April 14, 2025 by 88xpressions

  • Compact and long battery.
Style: Forest Gray
Nice small speaker with great sound!
Reviewed in the United States on May 11, 2025 by abiel correa

  • I'm all about that bass~~~
Style: Forest Gray
The Sony ULT Field 3 Wireless Portable Bluetooth Speaker is a fantastic option for anyone on the go! The carrying strap is a great addition as well. The battery life is decent, providing a solid 24 hours of playtime, but I found that it could be even better. One area where I feel it falls short is the bass. While it does deliver enhanced sound quality, I would have loved a bit more oomph in the bass department. Overall, it’s a great portable speaker, especially with its IP67 rating for waterproof, dustproof, rustproof, and shockproof features. Just a few adjustments to the bass would make it nearly perfect! Would definitely recommend it for anyone looking for a reliable, portable sound solution. ... show more
Reviewed in the United States on June 4, 2025 by J. Uy

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