Anyone who travels a lot and likes to listen to music will certainly appreciate the small stature and shape of the Idea International USB Card Speaker.
Just as the name suggests, the Idea International USB Card Speaker is a miniature amplifier that fits right into the palm of your hand. With the exception of the degree of thickness, it really is the size of a credit card in length and width. This will broadcast about five hours of sound with a 3.55mm jack connection that should fit just about any MP3 player you want to use. You can charge this device via USB and it requires about two hour for it to be completely juiced up.
The Idea International USB Card Speaker is available in a variety of colors.