Concerning this item Strong JBL Pro Audio: Rock out to the powerful JBL Pro Sound, which even at maximum volume produces deep bass and clear, dynamic sounds. A futuristic light show Combine that incredible sound with an exciting futuristic light show that is timed to your beat and includes strobe light effects, cool light trails, and starry lights. Playing for up to 12 hours: You can dance all night long for up to 12 hours on a single charge. Just getting warmed up? Replace the *replaceable battery and continue. You can play for an additional 80 minutes with a 10-minute fast charge. Separately available, replaceable battery Foldable handle: The PartyBox Club 120 is convenient to carry around thanks to its foldable handle. The ergonomic body of the speaker is made to distribute weight evenly.