A powerful and portable speaker, the ULT FIELD 5 has advanced sound technology for more powerful bass, a long battery life, and is durable for outdoor use. It features lighting that syncs with your music, can be positioned horizontally or vertically and has a shoulder strap to make it easier to carry. It's ready to transform the way you listen to music and can go wherever you want to take it.

Enjoy a superior music listening experience with powerful boosted sound
Get ready to experience powerful boosted sound with an ULT button for deeper bass that is set to transform your sound.

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 bass.

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 optimised 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. 79 mm x 107 mm large woofer unit is designed for clear and deep bass sound.

A richer, clearer, deeper experience?
The non-circular diaphragm not only maximises 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.​

A powerful deep bass boosted music experience, to be enjoyed anywhere
With a shoulder strap, long battery life and durabilities like water, dust and rust proof, you can take this speaker anywhere you want to go without worrying.

It's easy to take your music with you
The included shoulder strap[FN|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.] makes it easy to transport your speaker to wherever you want. So, anywhere you go, you can create a party venue for your music.

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

Charge up in just 10 minutes
With quick charging, you can get 100 minutes of playing time with just 10 minutes of charging.​

Take care of your battery
With the Battery Care function, you never have to worry about overcharging your speaker, which means it will last longer.​

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

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 synchronise with your music and can be controlled via the ​Sony | Sound Connect app.

Music that really gets you moving with Party Connect?
Link up to 100 compatible speakers to synchronise music and lighting through Party Connect – fill any location with powerful sound to create the ultimate party atmosphere, there's no app required, just add speakers with the dedicated hardware button.