Philips AX5311 Personal CD Player with Remote Control and Carrying Pouch Rugged, heat-resistant personal CD player with 45-second electronic skip protection Compatible with CD, CD-R, and CD-RW formats; 6-key remote control Digital bass boost system and Bass Wave Tech headphones optimize low frequencies 30-track programming, intro scan, repeat play, and shuffle play Plays for 40 hours on a pair of AA batteries; 5.41 x 0.92 x 5.41 inches (W x H x D)