BRAND NEW - SEALED BOX. Sony Walkman S Series. 8GB. Built-in stereo speaker for casual listening without headphones. I own and use a different version of this one and use it to listen to audiobooks everyday. I LOVE IT! I've had other types of MP3 players but I love this one for many reasons including the tactile buttons for volume, play/pause and a back button. Makes it much easier to operate in the dark or when I'm on the go. It is very tiny - only 2" across and 4" tall making it super lightweight and small to travel. I keep it in my front pocket almost constantly. *Plays Back AVC (H.264), MPEG-4, WMV Video Files & MP3, WMA, ACC, Linear PCM Audio Files (Some of the information on the back of the box) *System Requirements: *OS:Microsoft Windows Vista SP1, Windows XP SP 2 or later *CPU: Pentium III 450MHz or higher *RAM: 256MB or more *Broadband Internet *Windows Media Player 11 I am NOT a reseller. I've purged my sister's house, who is a compulsive shopper, and both my grandparents and uncle's places, who were hoarders, and now I'm selling items that don't belong in the dumpster. I've reviewed all items for flaws and done my best to note them. Each piece is individually packaged as soon as I can after purchase to ensure you receive your item quickly and in great condition. Items are in a smoke-free, pet-free home but if they are not new with tags they have been washed. Feel free to make offers or bundle items for better deals! Thank you for purchasing from me!!