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🎶 Elevate your sound, wherever life takes you!
The Sony ULT Field 1 is a compact yet powerful 30W Bluetooth speaker featuring a massive bass boost via the dedicated ULT button, up to 12 hours of battery life, and an IP67 rating for water, dust, and rust resistance. Designed for on-the-go lifestyles, it includes hands-free calling with echo cancellation and app-based sound control, making it the perfect companion for both urban and outdoor adventures.










| Age Range Description | Adult |
| Antenna Location | For Smartphones or Tablets |
| Asin | B0CXL4FQBK |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Mono |
| Battery Average Life | 12 Hours |
| Battery Capacity | 2900 Milliamp Hours |
| Battery Charge Time | 5 Hours |
| Best Sellers Rank | #2,094 in Electronics (See Top 100 in Electronics) #35 in Bluetooth Speakers |
| Bluetooth Range | 30 Metres |
| Box Contents | USB Type-C cable, Strap Belt, Warranty Card, Reference guide,,,,,,,,,,,,,,, |
| Brand Name | Sony |
| Colour | Black |
| Compatible Devices | Smartphone |
| Connectivity Protocol | Bluetooth |
| Control Method | App |
| Country Of Origin | China |
| Customer Package Type | Flat Free Package (FFP) or Equivalent |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,356) 4.5 out of 5 stars |
| Enclosure Material | Silicone or Hard Plastic |
| Frequency Response | 20 KHz |
| Impedance Unit Of Measure | 4 Ohms |
| Importer Contact Information | Sony India Private Limited, A-18, Mohan Co-operative Industrial Estate, Mathura Road, NEW DELHI 110044, INDIA , Customer Care Number : 080 6500 6500, email: [email protected] |
| Input Voltage | 5 Volts |
| Is Waterproof | True |
| Item Dimensions D X W X H | 7.6D x 20.6W x 7.7H Centimeters |
| Item Type Name | Party Speaker |
| Item Weight Unit Of Measure | 1.43 Pounds |
| Manufacturer | Sony, sony |
| Manufacturer Contact Information | sony |
| Maximum Range | 30 metres |
| Model Name | ULT Field |
| Model Number | SRSULT10B.UC |
| Mounting Type | Tabletop Mount |
| Mp3 Player | No |
| Network Connectivity Technology | Bluetooth |
| Number Of Audio Channels | 2.0 |
| Number Of Batteries | 1 A batteries required. |
| Number Of Items | 1 |
| Packer Contact Information | sony corporation, 1-7-1, konan, minato-ku, tokyo, 108-0075, japan |
| Power Source | Battery Powered |
| Product Features | Bass Boost, Dustproof, Waterproof |
| Speaker Size | 16 Millimetres |
| Speaker Type | Portable Speaker |
| Specific Uses For Product | Party, Travel |
| Total Usb 2 0 Ports | 1 |
| Tweeter Driver Diameter | 16 Millimetres |
| Unit Count | 1 Count |
| Upc | 027242928923 |
| Warranty Description | 1 Year |
| Warranty Type | Limited |
| Water Resistance Level | Water Resistant |
| Wireless Technology Type | Bluetooth |
| Woofer Driver Diameter | 83 Millimetres |
User
Incredible Bass and overall package
Really great product, I appreciate how the connection is seamless and how the buttons are so responsive since am coming from Anker products.One con will be if you plan to use the same for watching some casual movies the conversation is not the best, Of course if you are bass head then this is really great
User
Damn, it’s so good
Damn, I didn’t expect it to be this good. Sound clarity even at full volume is really good, ULT mode gives extra bass boost. Battery is quite good, I use this couple of hours everyday and have to charge it once per week. I got it at 6k, total value for money. Only drawback is that, it only has BT connectivity.
User
Bang for buck
I’m genuinely surprised by the quality of this speaker feels very solid sound is great but sound is clear only till 70% volume so I would not say that this is true 30W speaker it’s fantastic if I consider it as 15w or 20w speaker and considering price of 8k it’s the best value speaker without missing any features
User
Powerful Sound in a Rugged, Compact Package
The SONY ULT Field 1 really surprised me with how much power it packs into such a compact, portable design. If you’re looking for a tough, travel-friendly speaker with serious bass, this one delivers — almost perfectly.🔊 Sound Quality & BassThe sound is clear and punchy, with well-balanced mids and highs. But what really stands out is the ULT button — once pressed, the bass gets a serious boost without muddying the overall audio. Great for outdoor use or bass-heavy tracks. It’s loud enough to fill a room or fuel a picnic vibe.🔋 Battery LifeSony claims up to 12 hours of battery, and that holds up well under moderate volume. If you crank it up or keep the ULT mode on all the time, expect slightly less, but still very respectable.💪 DurabilityWith IP67 rating, it’s waterproof, dustproof, and shockproof — ideal for hikes, beach trips, or poolside lounging. The build feels sturdy and premium, and the detachable strap is a thoughtful touch for carrying or hanging.📶 ConnectivityBluetooth connectivity is fast and stable. It paired instantly with my phone and stayed connected with zero dropouts during use. There's also support for stereo pairing if you have a second unit.✅ Pros:Compact and very portableImpressive bass with ULT modeDurable, waterproof, and dustproofSolid battery lifeStylish, rugged design❌ Cons:No AUX input (Bluetooth-only)Bass can be a bit overpowering for some genresNo app support for EQ customizationFinal Verdict:The SONY ULT Field 1 is a fantastic speaker for bass lovers and outdoor adventurers. It's not perfect — some might want more sound customization or wired options — but for what it offers, it's a reliable, well-built speaker that sounds great and travels even better.
User
The best speaker I have used!
Excellent sound quality. Have been using it for over 6 months now. Good battery life. Works well even in open spaces. Very sturdy.I have used Boat, JBL & other speakers over the years, but this is by far the best one. Even as good as Bose!Overall, a good value for money!
User
Sony ULT and I
Wonderful invention. The sound too is clear and loud. When you are alone, and enjoying the depths of music, you don’t need anything more.
User
its ULT sound is the answer
fantastic. if you are a music lover than must go for it
User
Worst product
Pls Dont buy this product it has very less sount ,no return no replacement by amazon ,i feel cheated .
User
Ótimo produto
Excelente
User
Wrong choice…
I bought Tribit for 65$ first, thought higher price means higher quality, returned as it was a mess of all sounds, terrible. Then right after Amazon returned my guldens I bought Sony ULT Field 1. I am trying it third day in a row and i’m not happy at all. All these video reviews on tube and feedbacks on Amazon worth nothing. Why? Because you don’t know who has what experience, interests or anything else…age, income… So, ling story short- I have LG speaker PL7 and JBL C5 and Sony F1 is falls short compared to previous two. Ugly, very ugly bass, especially when you press ULT button in the middle of the song it spews on you weird sound, very disturbing and disappointing….Sometimes, when I see stuff like these, dashboard of Camry and hull design of Nissan Centra… I am thinking this these guys must have taken something strong…. Do not waste your money for ULT field 1, Tribits and rest …. Go for clear, soft almost perfect voice of PL7-you won’t be regret! Last advice- test first, then buy !
User
Awesome When You Buy And Pair TWO Ult Field 1's
Awesome. Love them! Would purchase the TWO combined again. Great stereo sound with TWO Bluetooth'ed together. Battery life seems very good even with the enhanced sound button on. They connect effortlessly too. And are durable. Mine have fallen to a carpeted floor 3 TIMES because I placed them in precarious spots and their inherent bass caused them to move just a tiny bit enough to fall. Place them on a table top, etc. and no problems. This was my definite user error, instead of any kind of fault. I was looking for sound equal to, or better, than a 1982 Walkman I bought but never forgot. I definitely wasn't disappointed! These are by far, better sounding than 3 other name branded Bluetooth speakers I have purchased. And those, weren't cheap ones either! They possess a balanced sound profile with enough bass too. Clean sound across the entire spectrum! "Thrilling" really. Just don't expect them to sound like there's a dedicated subwoofer attached. But again, I find the bass response very pleasing. Super easy to grab as a pair and carry around too. Genuine "Grab and Go" anywhere! They'll accept either a "Normal / Standard" speed charger or a standard "Fast charger" too. They adapt. Just not something like "Super Fast" chargers. You need to not provide too much "voltage". With varying "amps", they only draw exactly what they need.I would rate these very highly. And would DEFINITELY purchase these TWO again. They will easily fill a large living room, and a good portion of an entire home.Volume is very good and clean even turned all the way up.No complaints here.----------------------------- * ADDITIONAL INFO I PROVIDED IN "AN ANSWER" TO A QUESTION, POSED ELSEWHERE. BUT, WELL WORTH READING I BELIEVE:I have TWO Ult Field 1's and run them in TRUE STEREO. They automatically connect, even just turning 1 of the 2 on, or BOTH at the same time, from within the appropriate app!If you notice, the Ult Field 1's are THE ONLY Ult Field in the full lineup of speakers which ACTUALLY DO STEREO. The other models ALL connect in "Party Mode" MONO.Now, here's where I think your issues arose. The Ult Field 1's MUST, FIRST-EVER be "stereo paired" in the Sony *Music Center* app, NOT the newer "Sound Connect" app. However, once Bluetooth stereo paired in the Sony "Music Center" app THE FIRST TIME, they'll THEN work fine in Sony's "Sound Connect" too.I found, I simply prefer using the "Sony Music Center" app BETTER, regardless! It seems to provide additional features for the Ult Field 1 over what's available in "Sound Connect".And AGAIN all this, really only applies to the STEREO SEPARATION which ONLY the "Ult Field 1 model" can provide."Party mode" may be LOUDER MONO, but never actually SEPARATES into 2 different channels for TRUE STEREO.I only know all this, partly because I read the instructions carefully, but also because I loved the Ult Field 1's STEREO PAIRED together so much, that I came back and was seriously looking into the larger versions offered.That was, until I found NONE of the larger speakers provide true stereo SEPARATION when paired and placed several feet apart.This is really because the larger models already separate into STEREO WITHIN *ONLY* THEIR OWN CASE, and NEVER actually do provide TRUE STEREO SEPARATION because it's already locked-in to their, each separate case.I'm keeping my Ult Field 1's because they're the only true way within the entire lineup, of achieving TRUE SEPARATION (of up to several / many distinct, feet apart)!It's one thing I believe "most buyers" aren't actually noticing about the entire lineup.I'm SURE the larger units provide better INDIVIDUAL sound, however when "paired" together they never truly form a separate-able stereo pair.They instead just make additional "volume" and "space-filling" sound in their "Party Mode" of up to many, multiple pairings.I wonder if you initially PAIRED in "Sound Connect" and haven't actually achieved TRUE STEREO SEPARATION yet!If not, DELETE all instances of the speakers existing within whatever apps, then re-Bluetooth pair within Sony *MUSIC CENTER* FIRST.Then, set your speakers several feet apart on separate sides of your head, and truly ENJOY!I'm keeping my little Ult Field 1 pair. Because they provide something special to make up for their otherwise tiny size: TRUE STEREO SEPARATION!(I sincerely hope I didn't mix up the TWO app names within this composition. If you wish to review your "original" instructions, but otherwise threw them away, they can be re-downloaded from Sony's website, of course.)
User
Received 2 different colors
I have no problem with the product Itself, i ordered 2 black speakers, i received one gray speaker. Why? I ordered 2 black speakers. What can i do with 2 speakers of different colors? I was in a hurry i wanted to use them for outdoor camping trip, i could order them elsewhere but they had only one black speakers. now i have to wait to return and replace, it is just a bad experience, all because the seller decided to send me a different color. Bad experience, the speaker sounds nice though
User
A qualidade SONY de sempre.
Não há o que dizer. É perfeita.
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