JBL 320 PartyBox Stage Speaker 

• Rock out with powerful JBL Pro Sound from two 6.5" woofers that deliver clean, precise, deep bass even at top volume and a pair of 25mm dome tweeters that produce crystal clear highs.
  
  
• Indoors or out, you can fill a space the size of a tennis court with music.
  
  
• Take all that sound and add a thrilling lightshow featuring starry lights, cool light trails, and strobe light effects—all synced to your beat.
  
  
• Party from dusk till dawn with up to 18 hours of play time on a single charge. And if that's not enough, just swap out the replaceable battery and keep on dancing. Or if you just need an extra boost, 10 minutes fast charge gets you an extra 2 hours of playtime.
  
  
• Additional replaceable battery sold seperately