Panasonic  SL-CT590 Portable CD Player Includes 2 AA NiCad rechargeable batteries, AC adapter. external adapter for an additional 2 AA alkaline batteries (alkalines aren't included), Panasonic over-the-head stereo headphones Up to 62 hours play when using rechargeable and alkaline batteries together Heat-resistant polycarbonate body Cover has slide-lock and full-open capabilities Electronic volume control