Nothing beats the amazing JBL Original Pro Sound with deep bass. The JBL Partybox Encore Karaoke Party Speaker gets the party started. JBLs PartyBox light show makes your party shine with ring and club lights and rockin strobe effects that sync to the beat of your music for an awesomely immersive audiovisual experience. Features low latency channel design along with adjustable bass, echo, and treble controls to enrich the vocal performances of anyone who wants to sing along. The digital wireless mic even comes with replaceable AA batteries so you can party all day and rock all night. From dancing on the beach to karaoke by the pool, the JBL PartyBox Encore is IPX4 splash proof so you never have to worry about the party getting too wet or wild. One JBL PartyBox not enough? You can pair two speakers wirelessly with True Wireless Stereo (TWS) technology for an even bigger, bolder sound.