* Accessories: SonicStage Software, Headphones (MDR-E931LP), Carrying Pouch, USB Cable, AC Power Adapter
* 20 GB Digital Music Player stores 13,000 tracks
* Plays back in MP3 and ATRAC Audio Formats
* Up to 30 hours of playback
* 20 GB Digital Music Player stores 13,000 tracks
* Plays back in MP3 and ATRAC Audio Formats
* Up to 30 hours of playback
* Get 50 songs from Connect.com with product registration
* Accessories: SonicStage Software, Headphones (MDR-E931LP), Carrying Pouch, USB Cable, AC Power Adapter

As well as playing music in Sony’s ATRAC3plus format, the Sony NW-HD3 is also an MP3 player. The Sony NW-DH3 has a 30 hour battery life.

The Sony NW-HD3 comes with a range of features designed to deliver quality, choice and convenience for every fan of portable music. The built-in 20 GB hard disc can hold the equivalent of 13, 000 tracks or 900 CDs worth of music when using high quality ATRAC3plus audio compression technology.

It offers 30 hours of uninterrupted playtime from a single battery charge and withstands almost all kinds of movement to deliver a skip-free performance. Specially developed G-Sensor technology enables the hard disc to resist impact to protect your valuable music or other data. Its aluminum body makes it light to carry.
Below is a link where you can buy Sony NW-HD3 Network Walkman 20 GB Digital Music Player (Black)