Tech / A CLOSER LOOK

Sony ULT FIELD 1: a little green, a little more bass

The Forest Gray speaker with a carrying strap and an ULT bass button. A portable Sony option with listed IP67 protection, hands-free calling and up to 12 hours of playback.

Jonathan LowryPublished October 3, 2026 · 2 min read

THE DETAILS, AT A GLANCE

Sony ULT FIELD 1 Portable Bluetooth Speaker

Forest Gray / ULT FIELD 1

Selected color: Forest Gray
Listening feature: ULT bass button
Listed battery: Up to 12 hours

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Forest Gray reads as a muted green in the selected reference, a distinctive change from the usual black portable speaker. The textured body and strap give the ULT FIELD 1 an outdoorsy look without making it visually loud.

The ULT button is the feature to notice if you enjoy a bass-forward option. It is a listening-mode choice, not evidence that this speaker is objectively better than another model.

A button for a different mood

The listing describes the ULT button as a bass boost. Decide whether that kind of adjustment appeals to your music habits rather than treating a stronger bass setting as the only measure of sound.

If possible, compare how the speakers sound with your own familiar tracks. A specification sheet cannot settle preferred tonal balance, and a larger advertised effect does not establish clearer listening.

Carry it the way you want

The detachable multi-way strap is a visible part of this model's appeal. Think about whether you want to carry a speaker by hand, attach it to a bag or leave it on a desk.

The listing also names hands-free calling with a built-in microphone. That is a useful distinction if the speaker will serve as more than a music source beside your phone.

Check the companion and the conditions

Stereo pairing is available with a compatible second speaker. Confirm the required model before assuming another Sony portable speaker can join it, particularly if you already have an older device.

The stated IP67 rating and up-to-12-hour battery figure come with conditions. Read the current protection, charging and playback guidance, then confirm Forest Gray on the selected offer before ordering.

ONE LAST LOOK