Sony ULT FIELD 5 Portable Speaker Wireless in Black - SRSULT50B
which ends 07/27/2025

Sony ULT FIELD 5 Portable Wireless Speaker
Enjoy a better way to listen to music with the Sony ULT FIELD 5 portable wireless speaker. With a powerful, boosted sound with two different bass modes, this portable speaker is designed for the user who wants to enjoy outdoor music and new immersive music experiences. With up to 25 hours of battery life and a portable design that includes a shoulder strap, you can take the Sony ULT FIELD 5 with you to enjoy your favorite music in any scenario.
Key Audio Features
Equipped with two different bass modes, the Sony ULT FIELD 5 includes an ULT button allowing you to switch between ULT1 and ULT2. ULT1 features a deeper, low frequency bass while ULT2 is more of a powerful, punchy bass. The X-balanced speaker unit enhances the clarity, sound and reduces distortion when listening to more bass heavy music. Designed for higher volumes, the Sony ULT FIELD 5 is ideal for larger environments and listening to music with groups of people, even when at a distance. With sound field optimization, the sound coming from the speaker adjusts when the environment is outdoors or noisy.
Smart Features
Using the Sony Sound Connect app, the Sony ULT FIELD 5 includes smart features that make this speaker a great choice for any user. From the app, you can check the battery life, change the lights and customize EQ. With the Party Connect feature, you can sync up to 100 compatible Sony speakers to synchronize the music and lighting. The speaker contains a USB Type-C port for convenient charging and that same port can be used as a charging bank to charge any of your devices. The Sony ULT FIELD 5 is extremely convenient and the perfect choice for your next speaker. If you want to learn more, give us a call at 800-860-3577 or check out our wireless speaker buying guide.
Key Features
- Press the ULT button to experience the powerful sound of ULT1 and ULT2 bass boost modes.
- Shoulder strap for easy portability9
- Link Speakers together with the Party CONNECT Button6.
- IP67 waterproof, dustproof, durability3, 4.
- The party never stops with up to 25 hours of battery life2.
- Quick charge: 10 minutes of charge gives up to 2 hours of playtime2.
- Hear your music exactly as you like it with 10-Band Equalizer8.
- 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 app5.
- Connect two ULT FIELD 5 speakers wirelessly with Stereo Pair6.
- USB Type-C charge and charge other devices.
Features
- 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. - Enjoy A Superior Music Listening Experience With Powerful Boosted Sound
Get ready for powerful, boosted sound with the ULT button. Select ULT1 for deep, low-frequency bass or ULT2 for powerful, punchy bass to transform your listening experience. - Boosted Sound To Feel Every Beat
Boost low-frequency sounds with enhanced sound pressure and deeper bass. Choose from two types of powerful bass sound, to feel every beat more and set your pulse racing, with lower frequencies than you thought possible from such a compact speaker. Fill any space with atmosphere, deepen your musical experience and make anywhere feel like a party. - 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 bass7. - Listen Loud And Clear
The technology in the ULT FIELD 5 works in harmony for better sound quality. The X-Balanced Speaker Unit delivers deep, punchy bass, and clear vocals even at high volumes. A high-efficiency tweeter provides crisp and spacious sound for high-frequencies. And the passive radiators are optimized for impressive bass extension and distortion-free sound. Put it all together and you get a great sound worth sharing with your friends. - 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. - A Richer, Clearer, Deeper Experience
The non-circular diaphragm not only maximizes the area of speaker diaphragm but it also increases sound pressure for deeper and punchier bass, less distortion and greater vocal clarity. Altogether, it elevates your listening experience. - Sound Field Optimization
By detecting ambient noise, sound settings can be automatically tuned to deliver clear sound even in noisy or outdoor environments. - 10-Band Equalizer
Select your favorite sound setting and hear your music exactly as you like it8. - A Powerful Deep Bass Boosted Music Experience, To Be Enjoyed Anywhere
With a shoulder strap9, long battery life, and resistance to water, dust, and rust, this speaker is built to go anywhere with ease3. - 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 music9. - Take The Party Outside
With IP67 waterproof and dustproof rating, this speaker is ready for listening by the pool, at the park or wherever you like, no matter how dusty the surface – and there’s no problem rinsing it off3. It’s also salt-water resistant, which means you can enjoy music even at the beach. - The Choice Is Yours
Stood up or flat. The ULT FIELD 5 is designed for optimal sound either way, so you can use it whichever way suits your space. - 360° Party Light To Liven Up Your Party
360° Party Light produces subtle lighting that’s perfect for illuminating parties or bringing a little mood into your everyday life. The illumination will synchronize with your music and can be controlled via the Sony | Sound Connect app5. - Music That Really Gets You Moving With Party Connect
Link up to 100 compatible speakers to synchronize music and lighting through Party Connect – fill any location with powerful sound to create the ultimate party atmosphere in any space6. And there's no app required, just add speakers with the dedicated CONNECT button. - 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 experience10, 11. - Total Convenience, Total Customization
The ULT FIELD 5 is even better with the Sony | Sound Connect app5. The simple interface lets you dial in your ideal sound and shortcut settings, including lighting control. It can even keep track of your recent listening history. - Check Your Charge On The App
Keep an eye on your battery level on the Sony | Sound Connect app12. - 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 device6. - Bluetooth Fast Pair6
In one tap, the ULT FIELD 5 enables quick, effortless Bluetooth pairing with your Android devices6, 12. - 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. - Aiming To Achieve To Zero Environmental Footprint
Inspired by the beauty of the world, we are doing our part to help preserve the Earth while still offering superior sound quality and listening experiences. Our goal is achieving a zero environmental footprint across the entire Sony Group by the year 2050, and we are fast-tracking numerous environmental initiatives. - 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 513. No plastics are used in the packaging material14. This reflects how we strive to reduce the environmental impact of our products. - Accessibility
We believe technology should make the world more interactive, more creative, more entertaining, and more inclusive. By incorporating human-centric, inclusive design into our audio products, we deliver our KANDO experience to all users, regardless of age, ability or environment.
Footnotes:
- 1 ULT POWER SOUND is a trademark of Sony Corporation.
- 2 Actual performance varies based on settings, environmental conditions, storage, and usage. Batteries are consumable products and their capacity degrades over time as they age. Sony does not guarantee the life span of the battery. 3 The unit, with the cap fastened securely, has a waterproof specification of IPX7*1 as specified in “Degree of protection against water immersion” of the IEC60529 “Ingress Protection Rating (IP Code)”, and a dustproof specification of IP6X*2 as specified in “Degrees of protection against solid foreign objects”. *1 IPX6 equivalency: The speaker maintains its performance while subjected to water jets from every direction. This means that no trace of water is found inside the speaker after a 3-minute test with water jets of 100 L/min and 100 kpa aimed from a distance of 3 m (9.8 ft). IPX7 equivalency: The speaker has been tested to, and maintains its operability when gently submersed in water to a depth of 1 m and left for 30 minutes. *2 IP6X equivalency: The speaker has been tested to and continues to block dust after stirring for 8 hours in a testing device which contains dust particles that are up to 75 μm in diameter.
- 3 There are 3 modes ULT off, ULT1, and ULT 2. Default setting is ULT2.
- 4 The equalizer is controllable through Sony | Sound Connect.
- 5 Do not use any strap other than the supplied shoulder strap. When using the shoulder strap, note the following: ーBe aware that the shoulder strap may catch on surrounding objects. This may cause it to tighten around your neck. ーDo not engage in strenuous exercise. ーWear the shoulder strap diagonally across your body while carrying the speaker. Otherwise, you may accidentally drop the speaker. ーIf the hook of the shoulder strap is not fully passed through the attachment loop, the speaker may fall.
- 6 If the surface of the system gets dirty, do not use detergent, thinner, benzine, alcohol, etc. to clean and do not brush the system. Whether you can completely wash it off or not, depends on the dirt or stain.
- 7 When ULT1/2 on, and the volume level is set to 18, lighting off. Actual performance may vary from the listed time due to the volume, songs played, surrounding temperature, and usage conditions.
- 8 Product availability varies by region.
- 9 When watching movies, there may be a gap between video and audio.
- 10 Only compatible between ULT FIELD 5 wireless speakers.
- 11 Update in Sony | Sound Connect app is required to use DJ Control, Party Light and Karaoke functions.
- 12 Google and Android are trademarks of Google LLC.
- 13 Android phones running 6+ are required.
- 14 The recycled plastics may not be used for parts, depending on the time of production.
- 15 Coating and adhesive materials excluded. This varies by region.
General
Warranty Information
Approximate Weight
Approximate Dimensions
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The battery provides up to 25 hours of continuous playback, ensuring long-lasting music enjoyment without frequent recharging, ideal for parties and outdoor activities.
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This speaker is rated IP67, making it both waterproof and dustproof. It is suitable for use by the pool, at the beach, or in dusty outdoor environments, and even salt-water resistant, ensuring durability in various conditions.
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Yes, it includes a 10-band equalizer that allows you to tailor the sound profile to your preference. Additionally, the Sony | Sound Connect app enables advanced sound and lighting control for a personalized audio experience.
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Yes, it supports wireless multi-room audio through Party Connect, allowing you to link up to 100 compatible speakers for synchronized music and lighting, creating an immersive party atmosphere.
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The speaker connects via Bluetooth 5.3 and supports multipoint connection to pair with two devices simultaneously. It also has a USB Type-C port for charging, an auxiliary 3.5mm input, and can act as a power bank to charge other devices.
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