Satter sound for the best music enjoyment. Enhance deep frequencies so you can feel the captivating bass and powerful sound. Strong bass tones for the palpable beat that makes you want to dance. Bass boost for low frequencies that make your heart race. Experience robust sound that conveys the energy of a live concert. Captivating bass at the push of a button. With the ULT button, you can switch between powerful ULT1 and ULT2 sound. Choose ULT1 for deeper, low-frequency bass. Choose ULT2 for powerful, rich bass. Loud and clear. The technology in the ULT FIELD 7 works together to provide better sound quality. The X-Balanced Speaker Unit delivers deep, powerful bass and clear vocal reproduction even at high volumes. A powerful tweeter enables clear, room-filling sound in the high-frequency spectrum. Passive radiators optimize the sound for clearer bass reproduction. All these elements combine to create an impressive sound that is best enjoyed with friends. Powerful sound through the X-Balanced Speaker Unit. The X-Balanced Speaker Unit features an almost rectangular diaphragm. This provides a larger surface area compared to conventional speaker units. The approximately 114 mm x 114 mm woofer delivers clear and deep bass. A full, clear, intense listening experience. The asymmetrical diaphragm not only maximizes the surface area but also increases sound pressure for rich and intense bass. At the same time, the diaphragm reduces distortion and ensures clear vocals. For a full, clear, and pleasant listening experience. Fits anywhere, lasts longer. Celebrate your party indoors or outdoors with a portable, waterproof, and dustproof design that can be set up vertically and horizontally. A long battery life ensures even longer enjoyment.