Additionally, the device has an easy-to-use volume wheel, as well as physical playback buttons and two microSD card slots for those with a sizable collection of music. How so? Well, for starters, it has two audio ports – one headphone jack and one balanced output for those interested in a cleaner and overall better quality sound. In general, the DP-X1A looks a little bit like a phone, but much thicker, and is completely optimized for audio use. Let’s start with the design, which is pretty attractive.