Panasonic SL-SX276J Portable CD Player with Jogger Case Ultra-light design with jogger case and belt for active use 40-second antiskip buffer and 24-track programmable CD memory Panasonic S-XBS bass boost and 1-bit MASH digital-to-analog audio converter Headphones with 3-key in-line remote control Plays up to 25 hours with 2 AA batteries