Bi-Directional Sound Room Shaking. High power audio with bi-directional speakers bring you yo a new level. Go Ahead turn it up with high-powered audio. Water-Resistant IPX5 Rated Now you can take the entertainment outdoors with a soundtower that is IPX5 rated for water resistance. Party Lights+ Set the mood with festive LED lighting effects. Enjoy party, ambient, and dance modes. Karaoke Mode With two mic inputs, you and a friend can sing your hearts out with Karaoke Mode. Wheels Included Move from the tailgate to the park or to the pool with ease. Thanks to the wheels included on your sound tower. Bluetooth Multi-Connection Connect two smart devices simultaneously and share the sound tower with ease. No more jumping back and forth, just deciding what's next. Group Play Connect as many as 10 Samsung soundtowers to create a powerful audio experience that's sure to get the party started. Party Sound Plus up your party with enhanced and punchy bass that's sure to set the tone for fun times. Sound Tower App Just download the Sound Tower App to control everything from built-in LED lighting to sound effects and even your EQ setting--Right from your android or iOS device.