Sony RDHGTK37IP Portable Party System with Bluetooth and NFC Technology This portable, 2-way speaker system uses dual woofers and tweeters driven by 420 watts total RMS power to deliver powerful sound and pounding bass that can fill most any room or backyard event. Power up your playlists, listen to your audio apps and stay connected with the latest iPhone and iPod devices. The integrated cradle provides convenient charging and playback control for devices using the 8-pin Lightning connector The convenient front USB input can be used to connect, control and charge a wide range of audio devices like previous generations of iPod and iPhone products, Walkman players, USB thumb drives or other compatible USB devices. Use any one of the 14 selectable LED and strobe lighting configurations to help set the tone and intensity for your music playback. Use the integrated AM/FM tuner to receive local broadcast signals with the included AM/FM antenna plugged into the rear panel. Users can select up to 20 FM and 10 AM preset stations.