Enjoy powerful and clear sound with the Sony ULT Field 5 Black. The speaker has a ULT button to set the bass. You can choose Deep Bass with deep bass and the Attack Bass if you want even more powerful sound with a deep bass. With the built-in lighting, you can add extra ambiance. In the app, you can control the colors, patterns, and turn off the light. The speaker adjusts the sound to the surroundings thanks to the Sound Field Optimization. When it's noisy, it adjusts the sound and everyone can enjoy the music. The speaker is dust-resistant and water-resistant with an IP67 certification, so you can use it outside without problems. With a 25-hour battery life, you can enjoy music for hours. You can easily take the speaker with you on the go with the removable shoulder strap.