SAMSUNG YP-780 : The touchpad operated YP-780 provides users with a simpler and easier to use interface, allowing them to keep a sense of control with a single touch. The YP-780 features dimensions of 45 ×73 ×17.5mm, while its blue-lid LCD matches perfectly with the mega silver or black body. The YP-780 is compatible with other music files like MP3, WMA and WAV. The YP-780 also comes with an FM tuner and provides continuous playback of up to 20 hours.