Ignitek iCruiser Home Audio System for iPods Compact speaker system designed for all dock-connecting iPods Pair of 2-inch midrange drivers and pair of 1-inch tweeters 3-inch vented subwoofer; overall 80 Hz to 20 kHz frequency response Built-in docking/charging cradle; auxiliary input for other audio devices Measures 9.45 x 8.3 x 4.6 inches (W x H x D); 1-year warranty