Introducing the SOUNDBOKS 4. This performance Bluetooth speaker's new design and features elevate your music. —Immersive Sound: Get ready to power your party with sound at 126 dB, ensuring that you feel every beat and hear every note. —Long-lasting Battery: Enjoy up to 40 hours of continuous playtime on a single charge, so you can keep the music going all night long. —Improved Stability: Experience a more stable and efficient speaker with redesigned speaker drivers, refactored audio, and firmware routing. —Customizable Design: Make the SOUNDBOKS 4 your own with the newly designed hi-def snap-off grill. —SOUNDBOKS App: Take control of your sound with the SOUNDBOKS App, which offers a range of features to enhance your listening experience. The SOUNDBOKS 4 delivers powerful, immersive sound and unmatched performance that will elevate any occasion.