The Solo 4 keeps the 3.5mm analog input for high-resolution, battery-free wired playback ... charge. Apple will be selling the Beats Solo 4 in three colors, Matte Black, Slate Blue, and Cloud ...

Apple has today unveiled ... hours of battery life. Beats Solo 4 also feature spatial audio with dynamic head tracking, and come in three colors: Matte Black, Slate Blue, and Cloud Pink.