Enjoy CDs and high-capacity MP3 disks, no matter where you are or what you’re doing—even out jogging—thanks to anti-skip technology. Never lose your place in audiobooks, either, with its helpful bookmark/resume feature. Built-in FM PLL radio; programmable memory and base boost. Headphone jack; wired earbuds included. 2 AA batteries not included; can also be powered via USB cord (not included). 5.12"Diam. x 1.12"Thick.