The ULT FIELD 7 gives you the freedom to carry it wherever you go. Enjoy two different type of bass-emphasised sound, powerful bass and deep bass. All in an easy to carry waterproof and dustproof design. Plus, connect a mic or guitar anytime, so you can turn up the fun even more. Features: A portable, waterproof and dustproof with punchy and deep bass and ambient, synchronised lighting. Includes a 30-hour battery with quick charging and the ability to connect a microphone and function as an amp for a guitar Enhance your low-end frequencies for exceptional bass and feel how powerful the sound is. Powerful bass to feel the beat and get you dancing. Deep bass boost for low-frequency sound that will make your heart tremble. Bathe in powerful sound and feel the energy of a live concert venue anywhere Press the ULT button to enjoy the powerful sound of ULT1 and ULT2. Select ULT1 for deeper, lower frequency bass. Select ULT2 for powerful, punchy bass The technology in the ULT FIELD 7 works in