Sony announces its, Walkman b (mwz-b160) series.
Length: 10 centimeters long
Weight: 28 grams
Battery: 18-hour battery life in power saving mode
Capacity: 4GB , 980 tracks
2GB ,470 tracks
# Bass Boost and Quick Charge; One-touch BASS Boost button with color matching power illuminator
#Charge for 3 minutes and listen to music for 90 minutes.
#The search technology ZAPPIN lets you browse your audio files in a second. Press the ZAPPIN button for a quick song preview, no need to search through the menus or the preference list.