What You're Buying
The Sony ULT FIELD 1, model SRS-ULT10, is a rechargeable Bluetooth speaker for listening without leaving your phone beside a fixed sound system. Sony lists its weight at approximately 650 g, making it a practical option to consider when you move between a desk, kitchen and outdoor seating area.
How It Works
Pair a compatible Bluetooth audio device, then play your music through the speaker. The unit includes a woofer and tweeter, and supports the Sony | Music Center app. Its USB-C connection is for charging only, not a wired USB audio input.
Why We Chose It
The useful combination here is a manageable size, a supplied carrying strap and a rechargeable design. Sony specifies an IP67 rating and approximately 12 hours of battery life. Actual runtime depends on settings and use; follow the manufacturer's care instructions rather than treating water resistance as permission for unrestricted exposure.
What Sets It Apart
A second ULT FIELD 1 can add a separate left and right channel. Sony explains that two matching units connect through Music Center for Stereo Pair. This is an optional two-speaker arrangement, not stereo separation promised from one purchase. Check the exact model before planning a pair.
View Sony ULT FIELD 1 at Haiven.
Why We Recommend It
Consider it if carrying one speaker between listening spots matters more to you than building a fixed installation. If your plan depends on USB audio or a stereo pair from a single unit, those requirements do not match this setup.
Technical details: Sony SRS-ULT10 specifications. Pairing guidance: Sony's ULT FIELD 1 setup guide.



