---
product_id: 620684319
title: "ULT Field 1 Waterproof Portable Bluetooth Speaker, Enhanced Bass, 12h Battery, IP67 Rated Dustproof Shockproof Rustproof, Detachable Strap (SRSULT10B), Black"
brand: "sony"
price: "₩258599"
currency: KRW
in_stock: true
reviews_count: 9
category: "Sony"
url: https://www.desertcart.kr/products/620684319-ult-field-1-waterproof-portable-bluetooth-speaker-enhanced-bass-12h
store_origin: KR
region: South Korea
---

# IP67 waterproof & dustproof ULT bass boost button 12h battery life ULT Field 1 Waterproof Portable Bluetooth Speaker, Enhanced Bass, 12h Battery, IP67 Rated Dustproof Shockproof Rustproof, Detachable Strap (SRSULT10B), Black

**Brand:** sony
**Price:** ₩258599
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your vibe anywhere — bass that moves you, durability that keeps up!

## Quick Answers

- **What is this?** ULT Field 1 Waterproof Portable Bluetooth Speaker, Enhanced Bass, 12h Battery, IP67 Rated Dustproof Shockproof Rustproof, Detachable Strap (SRSULT10B), Black by sony
- **How much does it cost?** ₩258599 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/620684319-ult-field-1-waterproof-portable-bluetooth-speaker-enhanced-bass-12h)

## Best For

- sony enthusiasts

## Why This Product

- Trusted sony brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rugged IP67 Durability:** Waterproof, dustproof, rustproof, and shockproof—built to survive every adventure, rain or shine.
- • **Powerful ULT Bass Boost:** Activate deep, resonant bass with a single tap for immersive sound that commands attention.
- • **Versatile Carry & Mount:** Compact design with detachable multi-way strap lets you hang, hold, or secure your speaker anywhere.
- • **All-Day Wireless Freedom:** Enjoy up to 12 hours of uninterrupted music, perfect for workdays, workouts, or weekend escapes.
- • **Immersive Surround Sound:** Advanced DSP technology fills any space with rich, concert-quality audio that elevates every moment.

## Overview

The Sony ULT Field 1 is a compact, portable Bluetooth speaker engineered for millennials who demand premium sound and rugged reliability. Featuring a unique ULT bass boost button, IP67-rated waterproof and dustproof protection, and up to 12 hours of battery life, it’s designed to deliver immersive surround sound indoors or outdoors. Its detachable strap and shockproof build make it the perfect companion for active lifestyles, while built-in mic and stereo pairing enhance usability and social connectivity.

## Description

Portable bluetooth speakers like the Sony ULT Field 1 Wireless Ultra Portable Bluetooth Compact Speaker immerse you in a world of deep, rich sound. This small bluetooth speaker sets itself apart with its unique ULT button that boosts your bass, making it a must-have for music enthusiasts. Imagine having a shower speaker bluetooth waterproof, tailored for your active lifestyle, and perfect for your travels. This waterproof speaker stands out with its IP67 rating, making it rustproof, dustproof, and shockproof, built to endure all your adventures. Outdoor speakers like the Sony ULT Field 1 let you say goodbye to battery anxiety with its impressive 12-hour battery life. This wireless speaker allows you to enjoy your music for extended periods without the need for constant recharging, ideal for long days out or unwinding at home. Bluetooth speakers like this one can transform any space into a concert hall with its sound diffusion processor. These portable bluetooth speakers use advanced DSP technology to create an impressive surround sound experience, ensuring your music always sounds its best. Express your style with this small bluetooth speaker, available in four color options: Black, Off White, Forest Gray, and Orange. As a shower speaker bluetooth waterproof, it allows you to add an extra speaker for stereo sound and features a built-in microphone with echo canceling technology for clear calls.

Review: Better then the JBL Flip 7! - The Sony ULT Field 1 is perfect for the price you are paying for, it's a good speaker in terms of Sound, bass and size, it's a good sized speaker, the carrying strap built in the speaker is perfect for carrying, Bluetooth connectivity is good, the battery is good enough for most people, and the stereo pair feature in this speaker makes it sound even better! I did do a comparison with the JBL Flip 7, and the Sony ULT Field 1 is better in sound quality and it's cheaper. So if you want a good speaker for a good price, get the Sony ULT Field 1.
Review: The Sony ULT Field 3: The Sweet Spot - This is an amazing speaker. Although it is very portable, it does verge on being too big to carry around with you everywhere. I'm no audiophile, but this speaker sounds great to me. It carries a proper punch and the highs are nice and crisp. There is a noticeable difference in sound with the ULT mode off or on. You're going to want to keep it on if you want that rumbling bass sound, but there's enough boom with it off. I haven't dropped it and don't plan on doing so, but the rubber molding on each end feels sturdy and able to absorb a decent fall. The waterproof feature is nice in case you ever leave this speaker out in the rain by mistake or want to keep it near a pool. Battery life is great. I have not timed it, but the battery last for serval days with multiple hours of use per day. I'm confident the battery claims from Sony are accurate. The ULT Field 3 is the sweet spot if you want a speaker that can be your primary Bluetooth speaker as well as a portable option. Get it. Your neighbors might hate you, but your ears will love you.

## Features

- BASS-BOOSTING: Portable bluetooth speakers like the Sony ULT Field 1 Wireless Ultra Portable Bluetooth Compact Speaker, allow you to unleash the power of deep, resonant bass with the ULT button. This small bluetooth speaker brings your music to life with its bass-boosting capabilities, making it a unique feature for music enthusiasts.
- WATERPROOF: The Sony ULT Field 1 speaker doubles as a shower speaker bluetooth waterproof, allowing you to carry your music with you effortlessly, thanks to its compact design and detachable multi-way strap. As a waterproof speaker, it offers flexibility in how you use it - hang it, hold it, or secure it as per your convenience, making it ideal for outdoor activities, travel, or simply moving around the house.
- DURABLE: Outdoor speakers like the Sony ULT Field 1 speaker, are known for their durability, boasting an IP67 rating. This wireless speaker is waterproof, rustproof, dustproof, and shockproof, making it a reliable choice for outdoor use, without worrying about damage from the elements.
- LONG-LASTING: Bluetooth speakers like the Sony ULT Field 1 speaker, allow you to listen to your favorite tunes for extended periods with its long battery life. As one of the best portable bluetooth speakers, it offers up to 12 hours of uninterrupted music, ensuring a continuous supply of music, whether you're hosting a party, working out, or simply relaxing at home.
- SURROUND SOUND: Experience a concert-like atmosphere in your own space with the Sony ULT Field 1 speaker's impressive surround sound. The sound diffusion processor fills up any space with sound through its DSP technology, creating a rich and immersive audio experience, particularly beneficial for those who appreciate high-quality sound.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CXL4FQBK |
| Audio Driver Type | Dynamic Driver |
| Batteries | 1 A batteries required. |
| Battery Capacity | 2900 Milliamp Hours |
| Best Sellers Rank | #4,307 in Electronics ( See Top 100 in Electronics ) #62 in Portable Bluetooth Speakers |
| Bluetooth Range | 10 Meters |
| Color | Black |
| Compatible Devices | Projector, Laptop, Gaming Console, Personal Computer, Smartphone |
| Control Method | Touch |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,787) |
| Date First Available | April 11, 2024 |
| Included Components | Speaker, Strap belt, USB Type-C Cable (A to C) |
| Indoor/Outdoor Usage | Indoor, Outdoor |
| Input Voltage | 5 Volts |
| Is Waterproof | True |
| Item Weight | 1.43 pounds |
| Item model number | SRSULT10B.UC |
| Manufacturer | Sony |
| Maximum Range | 30 Meters |
| Model Name | ULT FIELD 1 |
| Mounting Type | Floor Standing |
| Number of Batteries | 1 A batteries required. |
| Number of Items | 1 |
| Power Source | Battery Powered |
| Product Dimensions | 3"D x 8.1"W x 3.1"H |
| Recommended Uses For Product | For Smartphones or Tablets |
| Shape | rectangular prism |
| Speaker Size | 16 Millimeters |
| Speaker Type | Wireless Speaker |
| Special Feature | ULT mode for more bass, compact design with detachable strap, up to 12 hours of battery, IP67 water, rust, dust, and shock proof, built-in micrt |
| Specific Uses For Product | poolside, park, gym, camping trips, home, outdoor activities |
| Style | ULT Field 1 |
| Subwoofer Connectivity Technology | Wireless |
| Surround Sound Channel Configuration | 2.0 |
| Tweeter Diameter | 0.6 Inches |
| UPC | 027242928923 |
| Unit Count | 1.0 Ounce |
| Warranty Type | Limited |
| Water Resistance Level | Waterproof |
| Wireless Communication Technology | Bluetooth |
| Woofer Diameter | 1.7 Inches |

## Product Details

- **Audio Output Mode:** Mono
- **Brand:** Sony
- **Connectivity Technology:** Bluetooth
- **Frequency Response:** 2.4 GHz
- **Speaker Maximum Output Power:** 20 Watts

## Images

![ULT Field 1 Waterproof Portable Bluetooth Speaker, Enhanced Bass, 12h Battery, IP67 Rated Dustproof Shockproof Rustproof, Detachable Strap (SRSULT10B), Black - Image 1](https://m.media-amazon.com/images/I/51AJn-SljIL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Better then the JBL Flip 7!
*by M***L on December 18, 2025*

The Sony ULT Field 1 is perfect for the price you are paying for, it's a good speaker in terms of Sound, bass and size, it's a good sized speaker, the carrying strap built in the speaker is perfect for carrying, Bluetooth connectivity is good, the battery is good enough for most people, and the stereo pair feature in this speaker makes it sound even better! I did do a comparison with the JBL Flip 7, and the Sony ULT Field 1 is better in sound quality and it's cheaper. So if you want a good speaker for a good price, get the Sony ULT Field 1.

### ⭐⭐⭐⭐⭐ The Sony ULT Field 3: The Sweet Spot
*by D***E on December 11, 2025*

This is an amazing speaker. Although it is very portable, it does verge on being too big to carry around with you everywhere. I'm no audiophile, but this speaker sounds great to me. It carries a proper punch and the highs are nice and crisp. There is a noticeable difference in sound with the ULT mode off or on. You're going to want to keep it on if you want that rumbling bass sound, but there's enough boom with it off. I haven't dropped it and don't plan on doing so, but the rubber molding on each end feels sturdy and able to absorb a decent fall. The waterproof feature is nice in case you ever leave this speaker out in the rain by mistake or want to keep it near a pool. Battery life is great. I have not timed it, but the battery last for serval days with multiple hours of use per day. I'm confident the battery claims from Sony are accurate. The ULT Field 3 is the sweet spot if you want a speaker that can be your primary Bluetooth speaker as well as a portable option. Get it. Your neighbors might hate you, but your ears will love you.

### ⭐⭐⭐⭐⭐ EXCELLENT Speaker 🔊 👏
*by D***E on September 1, 2024*

We were on the market for a bluetooth portable speaker for our 18 year old daughter as a birthday present. We normally gravitate to the JBL brand - which ARE, and still remain to be, great speakers. But, being the baby of the family and living with hand-me-down [you name it]s all her life, I knew she'd appreciate a speaker in a style that was totally her own -- not another one of mom and dad's (or big brother's) speakers. Fun and easy as that sounds, this meant stepping out of my comfort zone. (You know how it is: you like what you like!) So I REALLY did my homework by researching many different brands/styles/specs (Bose, Beats, etc.) of speakers in the (about $100-150) price range. The number one thing our daughter was asking for was portability - hesitantly saying nothing bigger than her brother's JBL Charge 4, but I could tell smaller would be better. Bigger speakers may give better sound, but she wanted a "water bottle speaker" as they're called because they fit nicely in cup holders. So I began my search by comparing models to JBL's Flip 6 - the one I was originally going to purchase. I came across this Sony ULT Field 1, which is a new model that Sony released just a few months ago. I was impressed by it's veratility. Built the same way as the Flip 6 (outward facing woofer and tweeter, side bass) it has many of the same features as the Flip 6 like an app with an equalizer so you can fine tune your music and 12 hours of battery life. But the Field 1 came with a few extra features that raised my eyebrow... A ULT bassboost button giving you an extra, little option: go with a deeper bass if you're dancin' the night away - or turn it off if you're, say, talking with friends around a campfire and save on battery life. (By the way, it sounds GREAT even with it off!) It also comes with a phyical pause button and voice feature - where you can answer the phone through the speaker, (like in your car). Although it IS bigger than the Flip 6 it is smaller than the JBL Charge 5 - the newer version of her brother's speaker. As far as sound quality, several reviewers (YouTube) stated that the Field 1's sound quality falls BETWEEN JBL's Flip 6 and Charge 5 models. (I used my headphones to listen while they demonstrated the different speakers' sounds and, yes... uh-huh... I agree.) Again, ALL 3 speakers have very, VERY good sound quality - you really can't go wrong with any of them. We were looking at Sony's ULT Field 1 simply because we wanted to give our daughter something unique to our household - that fit her description of "bottle speaker" but measured up to my (ha!) standards of sound quality. I also want to point out (on a petty note) that we DO LIKE the carrying cord - a feature I thought at first glance might be awkward. It can be removed if desired but lemme tell ya, it's QUITE handy! :D So I added it to my cart, did that lil' 'hold-your-breath' pause thing we all do ...then tapped the 'ORDER' button. It arrived today (very next day) and, wanting to surprise her [a month] early, went ahead and handed her the package. (Sigh...gone are the days of my elegant gift wrapping sessions.) The surprise alone tickled her - but when she opened it, her eyes grew WIDE! She genuinely LOVED it!! (May I be clear here: I couldve given her a cleaned up, secondhand, garage sale speaker and she, in her sweet-nature, would have "LOVED" that. Ha! Ha! It was a sweet treat to do this for her.) 😄🥲 I asked if the size was too big and she said it was very much OK! Now, my picky ears are truly impressed by it's CLEAR sound - even turned ALL the way up, there's no "fuzziness" here! I had chosen the white color and it's very nice. It's not a sporty, bright white - just kind of a classy, muted off-white. One thing I DO like over the JBL brand is that the buttons have little, lights by each one so they'll be more easily seen in the evenings. (Cool!😎) Connectivity was easy - or so I assume. She had it out if the box and connected to her iPhone faster than I could say "Wait; there's an app...". She was already downloading the app and was playing music as I sat at down at the table to look it all over. So I'm feeling pretty confident to say it's easy to set up. As far as fitting in the cup holder, it does fit...kind of. It sits about 2½ inches down - snuggly enough to keep it securely upright while driving, but not all the way seated down inside it. Our car's cupholders (Ford Escape) have these little spring loaded, retractable, grabber things that prevent it from being seated all the way down inside. Bump it with your elbow and it'll go flying. That said, it still may fit in YOUR cupholders. It definitely will fit the (Ford) truck's cupholders. Lol! She loved the speaker so much though, it wasn't a deal breaker! After all that - go figure! (RME) But, hey!...that just tells you how good this speaker is!!) Overall, it is very much a sweet little speaker for its size and price point! (Way to go, Sony!) As they say in other Amazon reviews: "If you're on the fence give it a try - you will be pleasantly surprised." (🤔Hmmm...Let's see... MY birthday is in March...) 😄

## Frequently Bought Together

- Sony ULT Field 1 Waterproof Portable Bluetooth Speaker, Enhanced Bass, 12h Battery, IP67 Rated Dustproof Shockproof Rustproof, Detachable Strap (SRSULT10B), Black
- Silicone Cover Case for Sony ULT Field 1 Elextronics Ultra Portable Wireless Bluetooth Speaker, Protective Stand Holder for Sony ULT Field 1 Speaker Accessories (Case only) (Black)
- Lebakort Hard Case Compatible with Sony ULT Field 1 Ultra Portable Compact Speaker (Black Case)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-31*