The Nachus 256MB MP3 player is an ultra compact yet fully functional MP3 player. Weighing in at 15 grams and measuring 1-5/8 inches wide and 3/8 inches thick, the Nachus could easily be mistaken for a piece of jewelry, and in fact, you can pass it off as just that. The player is so tiny that you can wear it around your neck as a pendant, or you can just as easily tuck it into a shirt pocket unnoticed. With 256MB flash memory, you can store over four hours of music and a rechargeable Lithium-ion battery provides up to eight hours of listening. Look to Overstock.com for the hottest deals on the coolest digital audio components and accessories. Features include: Green finish 256MB flash memory MP3 format support (no WMA) 20Hz-20kHz frequency range USB 1.1 interface Supports Windows 98/2000/Me/XP, Mac OS 9.2 or above Approximately 8 hours of play time Lithium-ion battery Accessories include: Neck strap earphone DC to USB converter USB cable 2.5mm headphone plug adapter Installation driver CD User manual