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Celebrating 35 Years

ULT POWER SOUND ™ series ULT FIELD 5 Wireless Portable Speaker Black

Sony SRSULT50B

Available in 2 Color(s)

Black
SRSULT50B
Off-white
SRSULT50W

Features

  • BEST MIDRANGE BLUETOOTH SPEAKER: CNET Best of 2025
  • Press the ULT button to experience the powerful sound of ULT1 and ULT2 bass boost modes.
  • Shoulder strap for easy portability 9
  • Link Speakers together with the Party CONNECT Button. 6

Quick Specs

  • Type: Speakers
  • Energy Star Rated: No

See More

Due to manufacturer policy, this product cannot be added to your cart. Please contact Sound Designs for more details.

 
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Massive bass. Ultimate vibe.

Dive into the front row of a concert with a speaker built for music lovers. Experience heart-pounding audio with dynamic sound and massive bass. Get ready for the ultimate vibe.

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Hit the button. Feel the bass.

Press the ULT button to enjoy the powerful sound of ULT1 and ULT2. Select ULT1 for deeper, lower frequency bass. Select ULT2 for powerful, punchy bass. 7

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Powerful sound with X-Balanced Speaker Unit

Our X-Balanced Speaker Unit features a non-circular diaphragm, for an increased surface area compared to conventional speaker units. The approx. 79mm x 107mm large woofer unit is designed for clear and deep bass sound.

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It's easy to take your music with you

The included shoulder strap makes it easy to transport your speaker wherever you go, turning any location into a party venue for your music. 9

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The party never stops

Up to 25 hours of battery life 2 , the ULT FIELD 5 will keep your party powered all through the night.

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Add an extra compatible speaker for rich stereo sound with Stereo Pair

Connect two ULT FIELD 5 speakers, wirelessly with Stereo Pair, to activate stereo sound and experience a wider, more immersive listening experience. 10,11

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Check your charge on the app

Keep an eye on your battery level on the Sony Sound Connect app. 12

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More choice with Multipoint Connection

For total convenience, the ULT FIELD 5 can be paired with two Bluetooth® devices at the same time, automatically switching when a call is received, or playback is started on either device. 6

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USB Type-C® charge and charge other devices

The ULT FIELD 5 features a USB Type-C® port for convenient charging. The same port lets you use the ULT FIELD 5 as a portable powerbank to charge your devices.

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Environment in mind

Our products are designed not only to provide excellent sound quality, but also to consider the environment. Recycled Plastic is partially used for the body of the ULT FIELD 5. 13 No plastics are used in the packaging material. 14 This reflects how we strive to reduce the environmental impact of our products.

Massive bass. Ultimate vibe. Dive into the front row of a concert with a speaker built for music lovers. Experience heart-pounding audio with dynamic sound and massive bass. Get ready for the ultimate vibe.

Hit the button. Feel the bass. Press the ULT button to enjoy the powerful sound of ULT1 and ULT2. Select ULT1 for deeper, lower frequency bass. Select ULT2 for powerful, punchy bass. 7

Powerful sound with X-Balanced Speaker Unit Our X-Balanced Speaker Unit features a non-circular diaphragm, for an increased surface area compared to conventional speaker units. The approx. 79mm x 107mm large woofer unit is designed for clear and deep bass sound.

It's easy to take your music with you The included shoulder strap makes it easy to transport your speaker wherever you go, turning any location into a party venue for your music. 9

The party never stops Up to 25 hours of battery life 2 , the ULT FIELD 5 will keep your party powered all through the night.

Add an extra compatible speaker for rich stereo sound with Stereo Pair Connect two ULT FIELD 5 speakers, wirelessly with Stereo Pair, to activate stereo sound and experience a wider, more immersive listening experience. 10,11

Check your charge on the app Keep an eye on your battery level on the Sony | Sound Connect app. 12

More choice with Multipoint Connection For total convenience, the ULT FIELD 5 can be paired with two Bluetooth® devices at the same time, automatically switching when a call is received, or playback is started on either device. 6

USB Type-C® charge and charge other devices The ULT FIELD 5 features a USB Type-C® port for convenient charging. The same port lets you use the ULT FIELD 5 as a portable powerbank to charge your devices.

Environment in mind Our products are designed not only to provide excellent sound quality, but also to consider the environment. Recycled Plastic is partially used for the body of the ULT FIELD 5. 13 No plastics are used in the packaging material. 14 This reflects how we strive to reduce the environmental impact of our products.

Features

  • BEST MIDRANGE BLUETOOTH SPEAKER: CNET Best of 2025
  • Press the ULT button to experience the powerful sound of ULT1 and ULT2 bass boost modes.
  • Shoulder strap for easy portability 9
  • Link Speakers together with the Party CONNECT Button. 6
  • IP67 waterproof, dustproof, durability. 3,4
  • The party never stops with up to 25 hours of battery life. 2
  • Quick charge: 10 minutes of charge gives up to 2 hours of playtime. 2
  • Hear your music exactly as you like it with 10-Band Equalizer. 8
  • Ambient light that perfectly matches the vibe of your music.
  • Enhanced power and sound pressure, and truly immersive bass.
  • 2-way active design with dedicated woofer and tweeter.
  • Grab-and-go design.
  • Two different colors to choose from.
  • Enhance your experience with Sony Sound Connect app. 5
  • Connect two ULT FIELD 5 speakers wirelessly with Stereo Pair. 6
  • USB Type-C ® charge and charge other devices.
Eco and energy saving
Power Consumption (Networked Standby Mode) - Terminals 2.0 W
Application
COMPATIBLE SMARTPHONE APPS Sony Sound Connect
Sound
Speaker Size Approx. 79 mm x 107 mm
Speaker type Woofer/Tweeter(L/R)
Interface
Input and Output Terminals Yes
Bluetooth
FREQUENCY RANGE 2.4 GHz
Communication System Version 5.3
Compatible Profiles Yes
Supported Codecs Yes
Frequency Transmission Range 20 Hz - 20,000 Hz (44.1 kHz sampling)
Size & Weight
Dimensions (W x H x D) Approx. 320 mm x 144 mm x 125 mm
Weight Approx. 3.3 kg
General Features
Battery Life Approx. 25 H
Water Protection IP66/IP67
Power Consumption Approx. 27 W (at 9 V 3.0 A)
Power Supply DC
Chemistry of Embedded Battery Lithium-ion (Li-ion)
Battery Form Rechargeable

Quick Specs


  • Appearance

  • Type: Speakers

  • Features

  • Energy Star Rated: No
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Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

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