The JBL PartyBox Ultimate delivers superior Original JBL Pro Sound, boosted with an immersive Dolby Atmos experience over Wi-Fi*. Your guests will thrill to a breathtaking lightshow of captivating starry lights, cool light trails, and strobe effects, moving in sync with your beat. Stream your favorite party playlist, or take the stage, with inputs for two mics and a guitar. Create your own custom party flow using the fun interactive effects of the JBL PartyPad™. Wireless stereo pairing and multi-speaker connection are easy to set up and customize using the JBL One app. And since it’s self-tuning, it's going to sound its best no matter where you set up.