The X3 Mark III contains both a 3.5mm single-ended headphone output as well as a 2.5mm balanced output, allowing you to experience two kinds of high-quality sound. The balanced output, never before seen in the X3, is specially designed to give a broader soundstage and extract more details from the music than ever before. The X3 Mark III makes sure you get it with its dual high-performance PCM5242 DACs. In its balanced implementation, these DACs allow for effective noise rejection and a higher signal-to-noise ratio (SNR). All of this means that your music will come to you in its purest form, free from any unwanted artefacts. The X3 Mark III comes with two kinds of protective covers: a softer, more flexible silicone cover and a harder polyurethane cover. And to fully bring out the beauty in your X3 Mark III, black units will come with black covers while red units will come with red covers. These covers ensure that the entire body of the new X3 is effectively shielded from wear-and-tear. These accessories are just another part of our dedication to giving you an exceptional overall experience, from every detail on the new X3 itself to even making sure it will last.