Enjoy powerful sounds and deep bass with the Sony ULT products. The speakers and headphones have a ULT button that allows you to choose extra strong bass. Take the Sony ULT Field 1 to the beach or park, for example. This way, you can listen to your favorite music with a strong bass everywhere. Are you with a larger group? The Sony ULT Field 7 is a good choice. It's bigger, but you can still easily carry it by the handles. The 30-hour battery life makes it possible to listen to music for days. If you prefer to listen to music in peace and quiet, choose the Sony ULT Wear. Thanks to noise canceling, you don't hear ambient noise. For a big party, the Sony ULT Tower is a good choice because of its 360-degree sound and party light.