JBL PartyBox 310 Portable Bluetooth SpeakerPortable party speaker with dazzling lights and powerful JBL Pro Sound Incredible JBL Sound with a Dazzling Light Show. Huge sound, dazzling lights and unbelievable power set this speaker apart from the crowd. The JBL PartyBox 310 packs a full party into a transportable, splashproof sound machine like no other. Turn up your favorite playlists anywhere, from get togethers at home to dance parties on the beach. Bring big party vibes with 240 watts of