The RV-NB50 Kaboom boasts 40 watts of power and retains the original's general design -- a large cylindrical shape with a woofer at each end. Bass enhancement circuitry ensures room-rattling low frequency performance. Digital era upgrades include the iPod dock, which is shielded from the elements by a protective door, and USB Host for playback of music files stored on a USB mass storage device. In addition, there's a CD player that can handle MP3 and WMA file playback, and an FM tuner. For additional flexibility, there's a front audio input. A remote control makes it easy to operate while a shoulder strap makes it a cinch to carry.