CHORD Electronics Mojo, ultimate DAC/Headphone Amplifier, USB, Coaxial, and Optical, Black Authentic Chord Mojo that is entirely designed and manufactured in Great Britain. All Mojo devices come with a 12 month warranty by Chord Electronics Limited in the United Kingdom. Mojo, the ultimate DAC/Headphone Amplifier for your smartphone, iPhone or Android. Simply connect Mojo to your iPhone, Android phone, PC, or Mac, plug in your headphones and you can experience crystal clear audio the way you would hear it in the recording studio. Inside Mojo is a massively powerful headphone amplifier that will deliver crystal clear audio whether you use in-ear buds or large studio cans, it will even play almost any audio file that you can find, up to 768kHz 32bit, and quad DSD 256. Thanks to the latest Li-Po technology, Mojo is able to charge to full in only four hours and will give between eight to ten hours continuous use. Mojo plays all files from 32kHz to 768kHz and even DSD 256. With two 3.5mm analogue outputs you and a friend can listen too! Mojo is fully automatic and remembers its last used settings. Its case is precision machined from a single solid block of aluminum. You may think that good quality headphones are the be all and end all, but they are just the beginning. By using Mojo between your smartphone and headphones you can experience crystal clear audio the way you would hear it in the recording studio.