Unleash the true performance held captive by your audio system and discover the power of sound.
The zo is the world's first "speakerless subwoofer" and electronic audio enhancement device offering an affordable and versatile alternative for improving sound reproduction from any audio system. Whether you are listening with a portable media player and earbuds, an all-out home theater system, or anything in between, zo delivers a remarkably enhanced listening experience beyond your imagination. Additionally, the zo allows you to choose from a variety of enhancement settings, putting you in control of the listening experience. Whether you crave the impact of a 12" subwoofer for rumbling bass, increased vocal audibility, or accentuated clarity, the choice is at your fingertips with zo's user friendly one touch control. The zo is a sleek pocket-sized unit about the size of an iPod nano, weighs less than an ounce, and easily connects-up whenever, wherever, and to whatever you desire. Simply connect the zo between your portable player and sound delivery device using the included cables, and immerse yourself in pure listening pleasure. Besides zo's remarkable listening experience, its built-in rechargeable battery will help to preserve the battery life of your portable player and enable you to watch movies or listen to your music for longer periods of time between recharges. Additionally, zo was designed and is manufactured in the USA.