I wanted to share my own experience with the Mojo, which has also been the one of few others in the forum. I absolutely loved the sound this DAC generate and I have rediscovered many songs and loved listening
to old time favourites on the Mojo. At this price point, they must have sacrificed design and quality of some components. In my experience, the device failed twice, the first time after 5 month, the USB port became unresponsive and the device could not be recognised by my computer. Fortunately, the Mojo was still under warranty, and Chord exchanged it for a new one, not being able to repair the one I had shipped. Second failure, after 18 month, this time the battery failed, or actually degraded in performance. Under a full charge I was only able to get 4h of listening, as opposed to the 10h advertised. Now the DAC is not under warranty anymore, the official answer from Chord is that, batteries are unpredictable, and this can happen, they offer a battery exchange for a staggering £75 including shipping. The reality, as I browse the various hifi forums, is that the device has a major design issue with the USB port and the battery, and cannot be used as a desktop DAC which was my primarily use for it, as both components will significantly degrade quickly. I wanted to warn people that have this usage in mind, since Chord does not provide any guidance or warning as part of the product or advertisement they do.