---
product_id: 735836747
title: "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"
brand: "sony"
price: "¥59585"
currency: JPY
in_stock: true
reviews_count: 6
url: https://www.desertcart.jp/products/735836747-sony-ult-field-3-wireless-portable-bluetooth-speaker-ip67-waterproof
store_origin: JP
region: Japan
---

# IP67 Waterproof & Dustproof Enhanced Bass Boost 24-Hour Battery Life 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

**Brand:** sony
**Price:** ¥59585
**Availability:** ✅ In Stock

## Summary

> 🎶 Take your sound anywhere—bass that moves with you, rain or shine!

## Quick Answers

- **What is this?** 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 by sony
- **How much does it cost?** ¥59585 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/735836747-sony-ult-field-3-wireless-portable-bluetooth-speaker-ip67-waterproof)

## 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

- • **Grab, Go & Groove:** Lightweight with a stowable shoulder strap and compact design, this speaker is your perfect on-the-move audio companion for work, travel, and play.
- • **Ultimate Bass Power:** Hit the ULT button and feel the deep, immersive bass that transforms every track into a live concert experience.
- • **Endless Party Energy:** Up to 24 hours of playback with quick 10-minute charging for 2 hours of music—never miss a beat, no matter how long the party lasts.
- • **Seamless Social Sound:** Party Connect lets you link multiple Sony ULT Field 3 speakers for synchronized, room-filling sound that turns any gathering into an epic event.
- • **Rugged All-Terrain Durability:** IP67-rated waterproof, dustproof, rustproof, and shockproof design means your speaker thrives anywhere—from beach days to mountain hikes.

## Overview

The Sony ULT Field 3 is a wireless Bluetooth speaker engineered for professionals and adventurers alike, featuring IP67 waterproof, dustproof, rustproof, and shockproof durability. It delivers enhanced bass with a dedicated ULT button, 24-hour battery life with rapid charging, and the ability to connect multiple speakers for a powerful party experience. Compact and portable with a convenient shoulder strap, it’s designed to keep your music going strong wherever life takes you.

## Description

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

## 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 you’re 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DYB6KMJH |
| Additional Features | Bass Boost, Built In Microphone, Dustproof, Lightweight, Portable, Shockproof, USB Port, Waterproof |
| Antenna Location | For Music Players, For Smartphones or Tablets |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Mono |
| Battery Average Life | 24 Hours |
| Battery Charge Time | 10 minutes |
| Best Sellers Rank | #11,554 in Electronics ( See Top 100 in Electronics ) #243 in Portable Bluetooth Speakers |
| Brand | Sony |
| Built-In Media | Warranty Card |
| Color | Black |
| Compatible Devices | Smartphone, Tablet, Laptop, Television, Bluetooth-enabled devices, USB-output devices |
| Connectivity Protocol | Bluetooth |
| Connectivity Technology | Bluetooth |
| Control Method | Touch |
| Customer Reviews | 4.5 4.5 out of 5 stars (387) |
| Enclosure Material | Plastic, Mesh fabric |
| Is Waterproof | true |
| Item Dimensions D x W x H | 28.7D x 11.4W x 15.2H centimeters |
| Item Weight | 2.69 Pounds |
| Manufacturer | Sony |
| Maximum Range | 10 Meters |
| Model Name | SRS-ULT30/B |
| Model Number | SRSULT30B.UC |
| Mounting Type | Floor Standing |
| Number of Audio Channels | 2.0 |
| Number of Batteries | 1 9V batteries required. |
| Number of Items | 1 |
| Power Source | Battery Powered |
| Speaker Size | 16 Millimeters |
| Speaker Type | Smart Speaker |
| Specific Uses For Product | Party, Travel |
| Total USB 2.0 Ports | 1 |
| UPC | 027242931886 |
| Unit Count | 1 Count |
| Warranty Type | Limited |
| Water Resistance Level | Water Resistant |
| Wireless Technology | Bluetooth |

## Product Details

- **Audio output mode:** Mono
- **Brand:** Sony
- **Connectivity technology:** Bluetooth
- **Material:** Plastic, Mesh fabric
- **Mounting type:** Floor Standing

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/717-LwBzfTL.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/51uwm0HMYPL.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/61aylPHGFVL.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/81+1QgtX69L.jpg)
![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 - Image 5](https://m.media-amazon.com/images/I/717IeqHGiqL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Battery backup
*by B***H on 14 January 2026*

Still after bought 1st time used heard sound quality was good.

### ⭐⭐⭐⭐⭐ Review
*by W***K on 20 July 2025*

The sound on the speaker is absolutely amazing. The app for the speaker however needs a lot of work. The sound was so good I immediately bought a second one the day I got the first one so that I could utilize the "party connect" feature which allows you to connect up to 100 of these. The instructions on how to do it are as clear as mud. I've been able to get the speakers to connect two times, every time you turn on the speaker if you're going to connect a second speaker you have to go through the process each time. It took me about 25 minutes the first time in about 18 minutes the second time. The key is to only connect one speaker to your phone or tablet via Bluetooth, then hit the connect button on the first speaker, then turn on the second speaker without connecting it to Bluetooth hit the connect button on the second speaker. I had to go through the process several times including deleting the app removing the connection from my iPad and starting over. If you're only going to get one of these speakers I can tell you it's absolutely worth it the sound is amazing especially for its size. I bought this for when I travel with my iPad to have better sound quality playing movies and it does not disappoint. It gets about 12 hours of battery time if you're using the sound enhancing ULT, otherwise you can get up to 25 hours which is not even advertised for the device if you turn off ULT, I will say though the sound quality drops dramatically by turning off ULT. The build quality seems really nice, it feels like a solid piece of equipment that won't fall apart in your hands. The only complaint I have is the connection of multiple speakers.

### ⭐⭐⭐⭐⭐ Review
*by C***N on 1 February 2026*

Excelente producto a buen precio

## Frequently Bought Together

- 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
- Supmay Hard Carrying Case for Sony ULT Field 3 Wireless Portable Bluetooth Speaker, Wireless Portable Speaker Protection Case with Mesh Pocket for Shoulder Strap, Charging Cables, Black

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**Shop now:** [https://www.desertcart.jp/products/735836747-sony-ult-field-3-wireless-portable-bluetooth-speaker-ip67-waterproof](https://www.desertcart.jp/products/735836747-sony-ult-field-3-wireless-portable-bluetooth-speaker-ip67-waterproof)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-07-04*