The Music Balloon is a fun, lightweight rechargeable portable speaker, perfect for use with any MP3 player. By simply connecting the Music Balloon to a music player, you can enjoy high-quality sound at any time and the speaker needs only two hours of battery charge with the attached USB cable for five to six hours of continuous use. A replaceable, colorful cover of foam gives protection to the amplifier of the loudspeaker housing, making the Music Balloon perfect for travel. With the many colors of the Music Balloon, you can enjoy a different color for every mood.