Sony ULT Field 1 Black
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- ULT POWER SOUND mode enhances low frequencies at the press of the dedicated ULT button.
- Separate woofer and tweeter units deliver clear, powerful sound from a compact enclosure.
- Sound Diffusion Processor technology helps spread sound more widely around your listening space.
- IP67-rated waterproof and dustproof construction is suitable for everyday indoor and outdoor listening.
- Shockproof design and salt-water resistance provide added protection when travelling or visiting the beach.
- Up to approximately 12 hours of battery life supports extended listening between charges.
- Built-in microphone with Echo Cancelling enables clearer hands-free calls.
IN STOCK at EXTERNAL supplier.
If ordered before 10AM:
DELIVERED in 2-3 business days (main centres)
or 3-5 business days (regional areas OR large/heavy packages)
COLLECTION from Geewiz available in 1-2 business days
Sony ULT Field 1 ULT POWER SOUND Series Wireless Portable Speaker Black SRS-ULT10/BZE

The Sony ULT FIELD 1 is a compact wireless portable speaker designed to deliver powerful sound and enhanced bass wherever you listen. Its ULT POWER SOUND mode, portable multi-way strap and durable IP67-rated construction make it a practical choice for music at home, outdoors or while travelling.
Key Features:
- ULT POWER SOUND mode enhances low frequencies at the press of the dedicated ULT button.
- Separate woofer and tweeter units deliver clear, powerful sound from a compact enclosure.
- Sound Diffusion Processor technology helps spread sound more widely around your listening space.
- IP67-rated waterproof and dustproof construction is suitable for everyday indoor and outdoor listening.
- Shockproof design and salt-water resistance provide added protection when travelling or visiting the beach.
- Up to approximately 12 hours of battery life supports extended listening between charges.
- Built-in microphone with Echo Cancelling enables clearer hands-free calls.
Powerful Bass at the Press of a Button
Press the ULT button to activate ULT POWER SOUND and give bass-heavy music additional low-frequency impact. An approximately 83 × 42 mm woofer works alongside an approximately 16 mm tweeter, while passive radiators help reinforce the speaker’s bass response.
Sound That Spreads Through Your Space
Sony’s Sound Diffusion Processor is designed to expand the sound field beyond the speaker’s compact body. The speaker can be placed on its side or stood on its end, helping it fit comfortably into different rooms and limited spaces.
Made to Go with You
Weighing approximately 650 g, the ULT FIELD 1 is easy to carry between rooms or take on a day out. Its supplied multi-way strap offers several carrying and hanging options, while the compact design takes up relatively little space in a bag.
Ready for Everyday Adventures
With its terminal cap securely fastened, the speaker provides IP67-rated protection against water and dust. Its shockproof construction has also passed Sony’s drop testing based on MIL-STD 810H Method 516.8-Shock, providing added reassurance during everyday portable use.
Listen for Longer
The internal rechargeable battery provides up to approximately 12 hours of playback under Sony’s specified test conditions. USB Type-C charging makes it convenient to recharge the speaker using the supplied USB Type-A to USB Type-C cable and a compatible power source.
Simple Wireless Listening and Calling
Bluetooth 5.3 provides a convenient wireless connection to compatible phones, tablets and other devices. The built-in microphone supports hands-free calls, while Echo Cancelling allows two people to speak at the same time with fewer interruptions. Two compatible ULT FIELD 1 speakers can also be connected using Stereo Pair for separate left and right channels.
Technical Specifications:
| Specification | Details |
|---|---|
| Brand | Sony |
| Product Name | ULT FIELD 1 |
| Series | ULT POWER SOUND |
| Model | SRS-ULT10 |
| Manufacturer Part Number | SRS-ULT10/BZE |
| Product Type | Wireless portable speaker |
| Colour | Black |
| Speaker System | 1 × woofer and 1 × tweeter |
| Woofer Size | Approximately 83 × 42 mm |
| Tweeter Size | Approximately 16 mm diameter |
| Sound Modes | ULT POWER SOUND, three-band custom equaliser and 50 volume steps |
| Wireless Technology | Bluetooth 5.3 |
| Bluetooth Frequency Band | 2.4 GHz |
| Frequency Transmission Range | 20 Hz–20,000 Hz at 44.1 kHz sampling |
| Supported Bluetooth Profiles | A2DP, AVRCP, HFP, HSP and SPP |
| Supported Codecs | SBC and AAC |
| Stereo Pair | Yes, between two compatible ULT FIELD 1 speakers |
| Hands-Free Calling | Yes, with built-in microphone and Echo Cancelling |
| Compatible App | Sony | Music Center |
| Charging Port | USB Type-C, charging only |
| Power Supply | DC 5 V, internal rechargeable battery |
| Power Consumption | Approximately 7.5 W at 5 V / 1.5 A |
| Battery Life | Up to approximately 12 hours under Sony’s specified test conditions |
| Water and Dust Protection | IP67 with the terminal cap securely fastened |
| Portable Protection | Shockproof design and salt-water resistance |
| Placement | Horizontal or vertical |
| Dimensions | Approximately 206 × 77 × 76 mm |
| Weight | Approximately 650 g |
| Box Contents |
Sony ULT FIELD 1 speaker, USB Type-A to USB Type-C charging cable and multi-way strap |
Battery performance varies according to volume, audio content, ambient temperature and operating conditions. Water, dust and shock resistance do not guarantee protection against damage in every situation.
Take powerful wireless sound wherever you listen with the Sony ULT FIELD 1, and add it to your cart today.
- Returns Policy
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Return of merchandise (RMA) and Warranty
We want you to be happy with the purchase you have made from us. If you are not completely satisfied, you may return the product to us and we will either refund, credit, repair/replace it, subject to the below terms and conditions.
You can return purchases for a refund (excl shipping). Please notify us within 7 days and ensure item is ready maximum 10 days after delivery date.
Please ensure to log your return request within 7 days of receipt of your item. Please ensure to select the correct reason for return:
- Changed my mind / Item exchange
- Faulty on arrival
- Incorrect item received
All items are covered by a 12 month warranty (unless otherwise stated) which will be honoured directly by GeeWiz. All products will either be replaced/repaired/refunded depending on stock availability. Products will require evaluation by GeeWiz before a warranty claim can be accepted.
Should the item being returned for assessment be found to be in good working order, unfortunately, there will be a collection fee that will apply.
The collection fees are as follows:
- For returns on items that were sent with free shipping: R198
- For returns that had a surcharge, the same surcharge will apply for collection.
Please log your return on your account, under the returns manager.
We do not reimburse your fee to ship to us, but we will pay for return shipping if the item is subject to replacement. If the item you wish to return was ordered incorrectly / is no longer required / you have changed your mind, there is a collection fee that will be charged (please refer to the above) and this will be deducted from the refund amount once the supplier has credited us. Please note GeeWiz will only cover return shipping of a faulty unit within 6 months of purchase, after which, a shipping fee (starting from R198) will be applicable to you for the return of the unit.
Any disputes relating to ordered items being short/incorrectly shipped will only be entertained if reported to GeeWiz within 3 days of delivery/collection.
Refunds are subject to inspection of item(s) - in some cases, items will need to be sent to supplier for evaluation and testing. This can take up to 15 working days. Once a refund has been approved, this may take 3 - 5 business days to be processed.
ALL returns are subject to up to a 30% restocking fee if item is no longer in BRAND NEW condition or if item seal/packaging has been broken.
Please re-package safely and include all original product packaging.
All software products are unfortunately not eligible for credit or refund once purchased.
After the 6-month period, you will no longer be eligible and won't be able to receive a refund. We can however replace or repair depending on the outcome after our team of professionals has inspected the product.
Should a warranty sticker not be present on an item, the warranty is immediately null and void.
Batteries are covered under warranty, but please note that GEL, AGM and LEAD ACID have limited cycle runs. These are typically around 200 cycles and may run out before the end of the warranty. Once the cycles have been depleted, it means the battery has reached the end of life and will no longer be a warranty claim.
GeeWiz reserves the right to refuse a refund if the item is damaged from misuse, items are missing, or if the product is altered in any way.
GeeWiz or its affiliates are not responsible for damage or loss of any kind that may occur as a result of using or misusing any product purchased from us.
The warranty will no longer be valid, and GeeWiz will not be responsible for damage or injury of any kind resulting from:
- Electricity fluctuations and surges, lightning strikes, faults in the building wiring, faulty installations, and improper use of controls
- Failure to use the product in accordance with the operating instructions and or general misuse and or abuse
- Damage caused by a superior force (vis major) or if the product has been infested with insects or pests
- If the product is physically damaged after it left the store
- If water or liquid caused the damage to the product
- If the warranty seal is tampered with
- Any repair or tampering by an unauthorised person or attempt to repair or tamper with the equipment, or use of parts not supplied by authorised agents, or alterations or modification to the equipment shall render the warranty null and void.
For hygiene purposes.
Please note we cannot accept returns for apparel that has been worn, stained, frayed, or otherwise shows signs of use.
We can only accept returns for items that are damaged upon receipt or are faulty.
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