• Sony ULT FIELD 5 Portable Bluetooth Speaker Black SRSULT50B

    $369
    $80 (18%) off RRP of $449
    $80 (18%) off RRP of $449

    Sony ULT FIELD 5 Portable Bluetooth Speaker Black SRSULT50B

    $369
    $80 (18%) off RRP of $449
    $80 (18%) off RRP of $449
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    Colour: Black
    • Overview
    • Specifications & manuals
    • Reviews
    • Legendary service
    • Delivery, services & returns
    • Questions & answers

    Overview

    The Sony ULT FIELD 5 Wireless Portable Speaker delivers bold, powerful sound that moves with you. Designed for those who want to bring high-impact audio wherever they go, this speaker combines immersive ULT POWER SOUND with practical features that make it the perfect companion for every adventure.

    With the press of the dedicated ULT button, you can activate boosted bass that transforms your listening experience, filling any space with deep, resonant sound. A built-in 360° Party Light adds a vibrant glow that synchronises with your music, creating an atmosphere that’s perfect for parties, gatherings, or relaxing evenings at home.

    Engineered for life on the go, the ULT FIELD 5 is water, dust, and rustproof, so you can confidently take it to the beach, park, or skatepark without worry. The compact design, long-lasting battery, and included shoulder strap mean you can enjoy your music comfortably wherever you roam.

    Party Connect lets you link multiple compatible Sony speakers to amplify your sound and create a unified audio experience across larger spaces. Bluetooth connectivity and Fast Pair technology ensure effortless pairing with your devices, while intuitive controls and clear call functionality make operation simple and reliable.

    Built with eco-conscious materials, the ULT FIELD 5 is as durable and sustainable as it is stylish. Whether you’re heading out for an adventure or entertaining friends, this speaker delivers the massive bass, rich sound, and portability you need to elevate every moment.
    ULT POWER SOUND with Bass Boost

    Experience dynamic, heart-pounding audio with powerful bass. The ULT button instantly boosts low frequencies, transforming your favourite tracks with deeper, more impactful sound.

    360° Party Light

    Set the mood with a built-in ambient light that surrounds your space with colourful illumination. The 360° Party Light synchronises with your music, creating a lively, immersive atmosphere.

    Water, Dust, and Rustproof Design

    Built to handle the elements, the ULT FIELD 5 is protected against water splashes, dust, and rust. Enjoy music worry-free whether you’re at the beach, by the pool, or on the move.

    Portable and Long-Lasting

    Take your music anywhere with a compact, durable design, detachable shoulder strap, and extended battery life. Perfect for outdoor adventures, travel, and everyday use.

    Specifications & manuals

    key Specifications
    Brand
    Sony
    Model Number
    SRSULT50B
    Height (mm)
    144 mm
    Width (mm)
    320 mm
    Depth (mm)
    125 mm
    Weight (kg)
    3.3 kg
    Finish Colour
    Black
    warranty
    Manufacturer Warranty
    1 Year
    Use
    Not intended or designed for commercial use.
    audio
    Hands Free Calls
    connectivity
    Bluetooth
    Bluetooth Version
    5.3
    battery Information
    Built-In Rechargeable Battery
    Battery Life
    25 Hours
    other Features
    Water Resistant
    Dust Resistant
    Resistance Rating
    IP67
    Portable
    Features
    • ULT POWER SOUND: Delivers boosted bass and dynamic sound for an immersive listening experience.
    • 360° Party Light: Creates vibrant lighting effects that sync with your music.
    • Rugged Durability: Waterproof, dustproof, and rustproof construction for outdoor use.
    • Portable Design: Includes a shoulder strap for easy carrying wherever you go.
    • Party Connect: Link multiple speakers to fill large spaces with synchronised sound.
    • Long Battery Life: Enjoy extended playtime to keep the music going longer.
    • Clear Voice Calls: Integrated microphone for reliable, high-quality hands-free calls.
    • Bluetooth with Fast Pair: Quick and seamless connection to your devices.
    • Eco-Friendly Materials: Designed with sustainability in mind without sacrificing durability.

    Reviews

    Rating snapshot

    5
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    Average customer rating

    Overall
    4.4

    Appliances Online's customer reviews are independently managed by Bazaarvoice, ensuring their accuracy and honesty. Vouchers are sometimes offered to verified buyers in exchange for their unbiased review.

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    Pros
    1-3 of 5 reviews
    Neddynoo2026-01-08
    Great speaker
    Very happy with the sound. Only thing I found misleading was that it could be turned on remotely but it actually turns itself off after a while and can only be restarted manually
    P Devo2026-01-06
    Great sound!
    Great sound for its size. Lights are ok. More of a novelty than a feature. Only bugbear is that I bought two of these with the intention of using Sony Connect for stereo sound. Sony Connect is very buggy. Often lots of static and doesn’t work well. Hopefully this is rectified in a Firmware update.
    Peanuts182025-11-12
    Fabulous Sound
    We were absolutely thrilled with this bluetooth sound box. My partner is a seasoned musician and really rated it excellent.

    Legendary service

    The Appliances Online Net Promoter Score (NPS) is based on feedback from 89,897 people, collected between August 2024 to August 2025. Learn more about the Net Promoter Score (NPS).
    Very impressed
    Barbara, Wantirna, VIC
    Has been a pleasure
    Sue, Victoria Point, QLD
    I can always rely on this site
    Mikki, Gordonvale, QLD

    Delivery, services & returns

    Appliances Online is all about legendary service. We offer free next business day delivery, free connection, free removal and free recycling, and we even offer Saturday delivery and, in some locations, a Premium Delivery option that allows you to choose your own 2-hour delivery window.

    Questions & answers

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