Bring the JBL OnBeat speaker dock that has 7.5-watts x 2 power, ensuring an efficient audio burst. The frequency response of 70Hz-20kHz in this JBL speaker dock provides defined audio at all frequency levels. The 10k-ohms input impedance of this MP3 speaker has a wider dynamic range and can be turned to high volumes more easily. The 80dB signal-to-noise ratio of the JBL OnBeat speaker makes sure that you receive the loudest of sounds. This JBL speaker dock comes with IR remote control which allows you to operate the iPod/iPhone menus from a distance of 15ft away. You can also charge your iPhone/iPod with the built-in docking station of the JBL OnBeat speaker dock. This MP3 speaker features 1/8-inch auxiliary input connections to connect other audio devices to it.