Decades of audio experience at Sony have gone into the design of the ULT Field 1. The result is a powerful sound with impressive bass and exceptional detail, even when you turn up the volume. And all this in an incredibly small and extremely compact form factor.

Thrilling bass at the touch of a button. Press the ULT button to really unleash the power of the ULT Field 1. Bass is boosted and sound pressure is increased. The result is an amazing ULT POWER SOUND. Perfect for all bassline fans.

Anywhere, in any weather. The portable speaker is waterproof and dustproof and ready for practically anything. Take it to the beach, to a park... the possibilities are endless.ULT Field 1 is also shockproof and designed to withstand the inevitable knocks, bumps and scratches of everyday use.

Always with you. With its lightweight, handy, compact design and adjustable carrying strap, you can take your music with you wherever you go. It can be positioned horizontally or vertically depending on space and preference.

One battery for the whole day. This Bluetooth speaker can play music non-stop for up to 12 hours.

Crystal clear calls. Take phone calls hands-free with the ULT Field 1. Indoors or out, our echo cancellation technology ensures clear conversations.

Quick and easy pairing. This speaker is compatible with iOS and Android, and with the pop-up Fast Pair feature, pairing with Android devices is easier than ever. Perfect for listening to music with friends. If you or a friend have a second ULT Field 1, they can be paired to create an even more powerful stereo system.