Billed as the brand's first ever professional-caliber headphone, the Sol Republic Master Tracks XC is tuned by DJ/producer/singer Calvin Harris to produce sound that's acoustically accurate for music -- especially useful for artists to use in the studio -- and designed with a lightweight, durable style for use by anyone, everywhere. A smooth, slim-line silhouette is dressed in a sophisticated "singularity red" finish, with lightweight construction and super-soft ear cushions to set them apart from the typical bulky studio headphone. "These headphones were created to have professional sound quality so you can make music anywhere and it will sound just like it was made in the studio," says Harris. "And if it sounds good on the headphones, you know it's going to sound good at the club." The Calvin Harris x Sol Republic Master Tracks XC is available now directly from the source.