Small but Powerful Sound Genius has designed a new speaker SP-i200 specifically for portable music players. This one-piece, mini compact speaker provides great sound with extended battery life and is lightweight and portable. Using advanced high-efficiency class-D IC and engineered neodymium drivers, the Genius SP-i200 portable speaker provides 6 watts of high-quality sound, far better than what you can find in one-piece speakers currently available. This not only enables you to hear rich, clear audio, maximum bass response and minimal distortion, but also you will be proud in sharing your favorite digital music with friends, or listen to tunes out loud. Other features let you adjust the stand for listening comfort and a low battery LED warning. This speaker also comes with a protective travel bag. The SP-i200 can be powered by either the AC adapter (included) or by four AAA batteries (up to 10 hours if at maximum volume).