• Sony ULT FIELD 5 Portable Bluetooth Speaker Black SRSULT50B

    $439

    Sony ULT FIELD 5 Portable Bluetooth Speaker Black SRSULT50B

    $439
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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
    Finish Colour
    Black
    Height (mm)
    144 mm
    Width (mm)
    320 mm
    Depth (mm)
    125 mm
    Model Number
    SRSULT50B
    Weight (kg)
    3.3 kg
    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

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    Average customer rating

    Overall
    4.7

    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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    1-3 of 3 reviews
    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.
    Satish2025-11-04
    Good not best
    Upto 60% volume, music is good to hear but any further increase you will not enjoy the music as you notice bass reducing, distortion of sound and music is not really enjoyable.
    CheeseCakeUnie2025-07-07
    A Powerhouse
    The Sony ULT Field 5 absolutely blew me away. This speaker is an audio beast; powerful, clear, and loaded with bass that you can feel in your chest. The ULT (Ultimate) bass mode really lives up to its name, giving your music that punchy low-end without muddying the mids or highs. What stands out most is the crystal-clear sound quality even at high volumes. It doesn’t distort or lose detail, which is rare in portable Bluetooth speakers. Whether you’re playing rock, EDM, hip-hop, or acoustic sets, it handles everything with depth and richness. The battery life is stellar; easily hitting the advertised 25+ hours depending on usage. The build is rugged and waterproof (IP67), so it’s perfect for beach days, road trips, or parties. The LED lighting adds a cool visual flair without being over the top. Bluetooth pairing is quick, and the companion app lets you customize sound profiles, lighting, and firmware updates. You can also pair multiple units for a wider stereo effect, which is great for larger gatherings. ✅ Pros: • Deep, thumping bass with ULT mode • Loud, clear, distortion-free sound • Excellent battery life • Rugged and waterproof • Stylish design with lights • Great app control ❌ Cons: • A bit bulky for some backpacks • Lights can be cycled through the device but you need to fiddle with it which is which Overall, the Sony ULT Field 5 is a top-tier portable speaker—ideal for anyone who wants premium sound, durability, and features in one device. Highly recommended!

    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 professional service, the product was best price
    Cori,
    Delivered the next day
    Judy, Fountaindale, NSW
    Fantastic service and price
    Lindsey, Queanbeyan

    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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