Take the Sony NWZ-B183 with you wherever you go. The compact design fits in the pocket of every coat or pair of jeans, so you can always carry the MP3 player with you. Do you want to make your favorite music sound even more intense? Activate the Bass Boost for a deep bass sound at both high and low volume. On top of that, you can browse through all of your songs quickly to find your favorite one, using the ZAPPIN Touch function. If you'd rather listen to your favorite radio station, simply switch to the FM tuner. In any case, you'll have enough playback time, because the MP3 player's battery lasts up to 18 hours when fully charged. If you're in a hurry and the battery is empty, charge the Sony NWZ-B183 in just 3 minutes for 1.5 hours of listening fun. You'll never be without music when you're on the go.