Never miss an opportunity to listen to your favorite music with the Craig CMA3224 3 In 1 Audio Combo Pack. What's included, on-ear headphones, in-ear earbuds, and a set of twin speakers. Our Headphones feature super big cushions for ultimate comfort, 40mm driver unit and a 3.5mm stereo nickel plated plug. Our in-ear silicon earbuds feature a 10mm driver unit and a 3.5mm chrome plated plug. Our twin speakers use 2 "AAA" size batteries for portable stereo sound. Plays all audio devices thru a 3.5mm aux in jack.