The Sony ULT Field 1 is built for people who live life outdoors. It is small enough to fit in your bag, tough enough to survive drops and dunks, and has a secret weapon—a dedicated ULT button that adds serious bass when you need it . Whether you are heading to Dunga Beach, camping in Kakamega, or just want something for the backyard, this speaker delivers.

Sony designed this one to compete with the JBL Flip and Ultimate Ears Wonderboom. It has the rugged build you expect from Sony, IP67 waterproofing that actually works, and a comfortable shape that fits in your hand like a coffee cup . Plus it comes in four colours: Black, Off White, Forest Gray, and Orange .

At Mikeronetechnologies, your local electronics guys in Kisumu, we rate this speaker for anyone who wants Sony reliability in a portable package.

Key Features at a Glance

• ULT Button for Extra Bass: Press the button and feel the low-end boost. Perfect for outdoor parties where bass gets lost in open air

• IP67 Waterproof and Dustproof: Fully protected. Submerge up to 1 metre for 30 minutes. Saltwater resistant too

• 12-Hour Battery Life: Up to 12 hours with ULT mode on. With Stamina mode in the app, you can stretch it further

• Lightweight and Portable: 650 grams. Fits in your hand. Detachable strap lets you carry it or hang it anywhere

• Shockproof Build: Survives drops from over 1 metre. Built for real life, not just the shelf

• Bluetooth 5.3: Stable connection up to 20 metres. Supports SBC and AAC codecs

• Clear Speakerphone Calls: Built-in mic with echo cancelling. Take calls without reaching for your phone

• Stereo Pairing: Connect two ULT Field 1 speakers for true left-right stereo sound

• Sony Music Center App: Custom EQ, battery status, Stamina mode, and stereo pairing control

• USB-C Charging: Modern cable, same as your phone. Full charge in about 3 hours

• Passive Radiators on Both Ends: Helps push out deeper bass from a small package

Detailed Specifications

Pros and Cons

Pros

• ULT Button Actually Does Something: Press it and the bass gets noticeably punchier. In open outdoor spaces where bass usually disappears, this makes a real difference . For Gengetone and Afrobeat, you will want this on.

• Built Like a Tank: Sony claims it is shockproof, and reviewers agree. One user dropped it off a table—no scratch, no issues . IP67 means dust, sand, and water are not problems. Rinse it off and it is brand new.

• Comfortable to Hold: Sounds weird to say about a speaker, but the shape is ergonomic. It slopes inward so your hand wraps around it naturally . The detachable strap means you can hang it in the shower or from a tree branch.

• Good Battery Life for the Size: Twelve hours with ULT mode on is solid . With Stamina mode in the app, you can stretch it further. Users report getting through weekends without charging .

• Surprisingly Clear Sound: Reviewers praise the clarity, especially at high volumes. No distortion when pushed. The highs are detailed, and mids come through well . One user called the sound “balanced even at higher volumes” .

• Handy Speakerphone: Built-in mic with echo cancelling. Calls come through clear on both ends. Good for when you are cooking or working and do not want to hold your phone .

• Stereo Pairing Works: Buy two and connect them in the app. Suddenly you have left and right channels. Fills rooms better and sounds wider .

• Lightweight and Portable: 650 grams disappears into a backpack. The strap makes carrying easy. Take it anywhere without thinking about it.

• Sony App Gives Control: The Music Center app lets you adjust EQ, check battery, turn on Stamina mode, and manage stereo pairing . Not fancy, but it works.

Cons

• Bass Still Has Limits: It is a small speaker. The ULT button helps, but it will not shake walls like a Boombox. Some reviewers found the bass “artificial” or “dense” when pushed . For its size, it is good. For bass heads, it is not enough.

• Battery Drops with ULT On: Twelve hours is with ULT mode active. Turn it off and you get more. But if you keep ULT on at high volume, expect less. One user noted the battery “won’t last 12 hours with ULT mode on” .

• App is Basic: The EQ only has three bands. No presets. You cannot save custom settings. It works, but it feels half-baked compared to competitors .

• No Party Connect: You can stereo pair two speakers, but you cannot link more than that. JBL lets you connect multiple speakers. Sony does not .

• No AUX Input: If you wanted to plug in an old device directly, you cannot. Bluetooth or USB-C charging only.

• White Version Gets Dirty Fast: Reviewers warn that the Off White fabric finish picks up dirt and scuffs quickly . Stick to black or orange if you want it to stay clean.

• No Battery Indicator on Speaker: You have to check the app to see exact battery percentage. The speaker itself does not show you .

• Mono Sound (Single Unit): One speaker alone plays in mono. Sounds fine, but you notice the lack of separation. Solution? Buy two and stereo pair them.

• Charging is Slow: Takes about 3 hours for a full charge. No fast charging option here.

Perfect For Every Occasion in Kenya

• For the Beach Lover: Dunga Beach, Kendu Bay, anywhere along the lake. IP67 means sand and water are not problems. Rinse it off after. The strap clips to your bag .

• For the Camper: Kakamega Forest, camping trips. Light enough to forget, tough enough to survive drops. Battery lasts the weekend .

• For the Shower Singer: IP67 means waterproof. Hang it from the strap in the shower. Steam? Fine. Direct water? Also fine .

• For the Cyclist and Hiker: Strap it to your backpack or handlebars. 650 grams is nothing. Music on the move.

• For the Student: Hostel life. Small enough to hide, loud enough for room vibes. USB-C charging means one less cable.

• For the Small Gathering: Family chama, Sunday afternoon, backyard nyama choma. Press the ULT button and the bass fills the space. People notice.

• For the Traveller: Road trips Kisumu to Nairobi or Mombasa. Throw it in the bag. Battery lasts the whole journey.

• For the Gift Giver: Birthdays, housewarmings, weddings. Looks good, sounds good, and the ULT button is a fun party trick.

Why Buy from Mikeronetechnologies in Kisumu?

When you are buying electronics, you want to know who is on the other end.

1. Price is Right: KSh 9,500 to 11,500. Fair and transparent. We match or beat Kenyan market rates.

2. Genuine Sony: Not grey market. Real stock, real warranty. Sony Kenya authorised.

3. We Are Local: Mikeronetechnologies, Kisumu town. You need support? You know where to find us. After-sales that actually picks up.

4. Delivery Handled: Anywhere in Kenya. Kisumu, Nairobi, Mombasa, beyond. We sort transport.

5. We Answer Questions: Not sure about battery life? Want to hear it before buying? Walk into our shop in Kisumu city center and ask. We do not hide.

Ready to grab one? Order The Sony ULT Field 1 from Mikeronetechnologies today. Call, WhatsApp, or walk into our shop in Kisumu city center. Let us get you set up for your next adventure.