Product information

Pros and cons

According to our Bluetooth speaker expert

  • You can enjoy an extra deep bass thanks to the 2 passive radiators.
  • With the ULT button, you can listen to a powerful bass and full sound.
  • Thanks to the IP67 certification, the speaker is dustproof and water-resistant and you can easily take it with you to the beach.
  • You can't charge your smartphone to the speaker.

Description

With the Sony ULT Field 1 Green, you can enjoy powerful and detailed sound. The speaker has a tweeter, powerful woofer, and 2 passive radiators. These passive radiators move along with the vibrations of the woofer that produces the bass. This makes the bass even stronger and you can enjoy a clear beat. The ULT button on the speaker provides an even deeper bass and fuller sound, so you can completely immerse yourself in your music. The speaker has an IP67 certification, so it's dustproof and water-resistant, so you can take it with you to the beach or pool without issues. The speaker is shockproof, so it can take a hit. The 12-hour battery life lets you enjoy your favorite songs all day.

This is what you get

  • Charging cable
  • Carrying strap
  • Registration card
  • Warranty card
  • Reference guide

Key specs

Maximum battery life

12 hours

Weight

0,65 kg

Wireless speaker size

Medium-sized (20 - 25cm)

Water resistance

Waterproof

IP certification

IP67

Built-in WiFi

Controls via app

Water-resistant

Show all specifications

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Recommended combination

Sony ULT Field 1 Green
Sony ULT Field 1 Green

Current product

Included accessories

Bluetooth speaker

Current product

Sony ULT Field 1 Green

Sony ULT Field 1 Green

Reviews

Rating

  • 5 stars

    10

  • 4 stars

    7

  • 3 stars

    0

  • 2 stars

    0

  • 1 star

    0

Customer images

Most helpful reviews

Our expert review

Compact speaker with excellent sound.

  • Clear bass tones
  • Easy to take with you
  • Compact size
  • Less full sound without ULT Bass
The Sony ULT Field 1 is a compact speaker that has a solid bass. I personalize the sound in the app, so I can enjoy music my way. The sound is a bit flat when the volume is turned down and the ULT Bass mode is not turned on. ULT Bass mode There is a ULT button on the speaker that I use to turn on the ULT Bass. In this mode, the speaker amplifies the bass and produces more powerful sound. I hear the difference clearly, because the bass really comes through in this mode. In addition, I also hear more detail in the music with this mode on. I think it's a shame that the music briefly interrupts with a sound effect when I press the button. Great sound The sound is fine. If I don't have the ULT Bass mode on, the sound sounds a bit flat. This means I hear fewer details. With the ULT Bass mode on, the sound sounds fuller and more powerful. This is partly due to the harder bass tones, because they produce strong sounds. That's why I prefer to listen to music with this mode on. If I want to hear the music clearly from the other side of my room, I turn up the volume. Otherwise the music will not come into its own. Sony Music Center App In the app I adjust the sound with the equalizer. This is how I control the low, middle and high tones. I like to hear the vocals in the music clearly, so I turn up the mids and highs a bit. Compact design The carrying cord makes it easy to take the speaker with me. In addition, it is compact, which makes it easy for me to put it in a bag. I have fairly small hands, but it fits comfortably in my hand. The logo is reflective, so you see rainbow colors in the logo. I think this is a nice detail.
  • Linde

  • 19 April 2024

  • Automatically translated from Nederlands

9,3/10 ()

Good sound, easy to carry

  • Bass
  • Compact
I had the opportunity to test this product, and I can definitely recommend it to anyone who likes to take their box with them everywhere. It is very handy to carry on the cord. The sound quality is superb; it can transform my bathroom into a true concert hall. Furthermore, you can use the ULT button to give your bass an extra boost. This gives the bass a truly 3-D sound. I like listening to hardstyle, and I think it's great for that. It is very handy to take with you, fits straight into your bag. At work or on the beach; he performs everywhere.
  • Virginia

  • 13 May 2024

  • Automatically translated from Nederlands

8,3/10 ()

Super good sound in a nice jacket.

  • Really good sound!
  • Long battery life
  • Nice design, but that's a matter of taste.
  • Equalizer cannot be used when bass boost is activated.
For my vacation, I was looking for a good portable Bluetooth speaker. I hesitated for a long time between the JBL Flip 7 and a Bose model, as both brands are known for their excellent sound quality. Ultimately, I chose the Sony speaker, and I have absolutely no regrets. The speaker really surprised me positively. The sound is clear, powerful, and well-balanced, with a nice deep bass without being boomy. Even at higher volumes, the sound quality remains consistent, which is great for outdoor use, such as at the beach or, in my case, by the pool. The battery life is more than sufficient for a full day of music listening, and charging is quick and easy. The speaker's design looks sleek and modern. It feels sturdy and is clearly of good quality. It's also water-resistant, which is ideal for vacation use or a day at the pool. All in all, I'm very happy I chose the Sony. It completely met my expectations and really gave my vacation a musical boost. Highly recommended for anyone looking for a portable speaker with top sound and reliability!
  • Daniel van Buren

  • 23 July 2025

  • Automatically translated from Nederlands

Insure your Bluetooth speaker

Receive more coverage in case of damage than with your standard warranty. Coolblue takes care of everything: from taking out the insurance to repairs. Is a repair not possible? You receive the purchase price as CoolblueCredit.

What am I insured for?

  • Fall and impact damage
  • Water damage
  • Manufacturing defects outside the warranty

What am I not insured for?

  • Damage you deliberately cause
  • Damage that doesn't affect the product functioning (such as scratches)
  • Damage due to gross negligence

XCover insurace

XCover is allowed to arrange and process insurances on behalf of the insurer. The insurances are governed by Belgium law. If you have a complaint, you can contact the or our customer service.

How do I insure my Bluetooth speaker?

First, add your Bluetooth speaker to your shopping cart. On the next page, choose the Protection Plan below. You always have a 30-day return window and pay no deductible in case of damage.

XCover Protection without theft cover
  • 3-year advance payment
    3,99 one-time payment (1,33 per year)
  • 2-year advance payment
    1,99 one-time payment (1,- per year)

The insurance can be canceled every year, even if you have paid in advance. If you cancel earlier, you will receive a refund for the overpaid amount.

Sony ULT Field 1 Green

Suitable accessories

Specifications

Product

Product number

946499

Manufacturer code

SRSULT10H.CE7

Brand

Sony

Warranty

2 years

Processing of your defect

Via Coolblue

Physical properties

Speaker type

Bluetooth speaker, Wireless speaker

Width

20,6 cm

Depth

76 cm

Height

7,7 cm

Wireless speaker size

Medium-sized (20 - 25cm)

Weight

0,65 kg

Color

Green

Integrated light effects

Built-in microphone

Power supply

Maximum battery life

12 hours

Water resistance

Water resistance

Waterproof

Waterproofness certification

IP certification

IP certification

IP67

Network and streaming

Bluetooth

Built-in WiFi

NFC

Multi-room audio

Plays from network

Radio

Multi-speaker connectivity technology

Sony Music Center app

Headphone jack

Sound reproduction

Mono, Stereo

Sound quality according to customers

Good

Controls

Controls via app

Controlled via buttons on device

Remote control

This is the one

Sony ULT Field 1 Green
Sony ULT Field 1 Green

Charger not included

121,-

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