Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: Entempo Rubato 20 GB MP3 Player
Product description: Life is all about bumps and grinds. Many MP3 players just don't always survive the pratfalls of one's daily existence. That's where the Rubato comes in. The Rubato uses a technology called "ShoX" for better protection from bumps which can cause hard drive based music players to skip. Other interesting features of this device include support of MP3 and WMA (including DRM) music files, special software called MusicMagic which can create a "sounds like" playlist based upon acoustical analysis of songs in the owner's collection, a FM tuner, voice recording through special earbuds and USB 2.0 high speed file transfers of music and other types of data.
Product feature: Features FM tuner and Voice recording, ShoX Hard Drive Protection System, Accessories include: Earbud speakers with a built-in microphone, a power adaptor, USB cable, and carrying case, Mixman software allows you to create your own music; MusicMagic from Predixis allows you to build customized playlists based on sound attributes, Compatible with Windows 98SE, ME, 2000, XP
Product brand: Entempo
Target attributes: Screen Size
Answer: attribute: screen size
value: None
source: None