Soul Ludacris SL150BWC On-Ear High Definition Headphones (SL150BWC) - Black/White Advanced Driver and Circuitry Design for Superb Bass, Clear Mids and Highs, Creates High-Precision Audio Balance. Compatible with Most Smartphones and Multimedia Devices with 1/8" (3.5mm) or 1/4" Headphone Input Jack. Full Ear Cup Articulation Ensures the Best and Most Comfortable Fit Every Time.