Concerning this item The JBL Original Pro Sound is incredible. Use the 100W of potent JBL Original Pro Sound to find your beat. With Bass Boost to keep the fun going all night, the JBL PartyBox On-The-Go produces clear highs, pure mids, and deep bass whether you're indoors or out. PARTY LIGHTS: Dazzle your guests with a dynamic light show that synchronizes with the music. Select from a range of pre-made patterns, then let the colors move in time with the music so you can concentrate on the melodies. Six hours to play: Up to six hours of playback are possible with the integrated rechargeable battery. IPX4 SPLASHPROOF: dancing in the rain, beach parties, and poolside gatherings. When your party gets a little wild, your JBL PartyBox On-The-Go is protected by IPX4 splashproof protection.