Creative Travelsound Zen Mozaic Speakers Big sound in a little package that's easy to take to work, school, to the beach, or anywhere you want to go Two High Performance MicroDrivers Crystal clear audio in wide stereo Class D Digital Amplifier Ensures lower heat dissipation and a longer battery life Built-in rechargable battery Long-lasting performance on the go USB Connection Charge both your TravelSound and ZEN Mozaic when docked, and manage your music, photos and playlist FM Antenna Boosts the FM performance of the ZEN Mozaic