Genius introduces SP-i300, a perfect combination of a portable MP3 player (PMP) and loud speaker. SP-i300 brings you a total music solution with great sound. By storing MP3/WMA music file on any USB storage device, you can play music without using other music processors. Control is easy, just slide the knob to turn on/off and adjust volume and press the functional key to play or choose music. It has a built-in lithium battery that makes this speaker mobile anywhere. Also, it has an AUX-in function so you can connect to a notebook, iPod, or cell phone through a standard 3.5mm jack. More amazing, the Genius-Link function lets you connect SP-i300 to a row of other Genius portable speakers to bring more stereo and louder sound. Two option color: piano black or chick yellow.