Sol Republic Tracks Ultra On-Ear Headphones with 3 Button Remote Sol Republic’s Tracks Ultra Interchangeable Headphones with 3-Button Mic + Music Control feature V12 sound engine speakers. Tracks Ultra can be remixed with a stylish selection of switchable cables and headbands. Fully loaded with deeper bass, higher vocal clarity and crisp vocals, you can feel the full power of your music. The SonicSoft Speaker Pads with extra-wide, noise-isolating ear cushions let you enjoy your music in comfort for hours. Constructed of polymer compound, the FlexTech Sound Track headband is built to withstand heavy abuse. Twist it, bend it, drop it- these headbands are virtually indestructible.