Revolution has done great for Apple products. This one is called fourth-generation iPod nano, which was released in mid-September 2008, and has given a new color on the ipod now this technology, the physical form of the increasingly slim. With, 4cm wide, 9cm high, 0.6 cm thick, and weight only about 37 grams, apple products this one is the thin iPod nano available. Although slim, but the screen and scroll wheel control remain, the LED screen 2 "(320x240 pixel LED) and the size of scroll-1". View and add to its attractive design, with the indentation in the aluminum and bagin outside the elegant look. IPod nano is also present with nine patterns of pure color: pink, red, black, silver, purple, blue, green, orange, and yellow In addition to changes in the physical side, Apple embed various new features. them is that Genius will help you when creating a playlist based on song characteristics of the same music from a song. In order to Create a Genius playlist, find a song you like, then press the middle of the iPod nano to show the options menu from the Start Genius. You also can save Genius playlists directly to the iPod nano, and synchronize to the computer with iTunes software. However, you must first activate the Genius feature in iTunes on your computer. Additional feature is the other new Shake to Shuffle. the latest iPod nano have been using the accelerometer, so you simply the (shake) your iPod nano to replace the track that is being played. Other feature is Cover Flow, which will automatically change if you change the iPod nano screen orientation according to the position; vertical (portrait) or sideways (landscape). However, to use the voice recording facility, you must purchase an additional form of device that has been integrated earphone with microphone. You must first install iTunes 8 to be able to synchronize your iPod nano with a computer. Ipod is also no radio facility in it, something that offered the latest generation Microsoft Zune.