JBL Charge 4 Portable Bluetooth Speaker Blue color__Granite New functions like Party Playlist MJEG4LS A New functions like Party Playlist and Karaoke Ranking via Sony’s Fiestable app turn the party into a full on interactive experience for everyone in attendance and Keynote Bass Radiators: Dual passive radiators deliver powerful ear catching JBL sound that resonates loud and clear Durable and Rugged Design: The durable fabric material and rugged rubber housing allows your speaker to outlast all of your adventures Long Lasting Battery Life: Built in rechargeable Li ion 7500mAh battery supports up to 20 hours of playtime and charges your device via USB port IPX7 Waterproof: Take the JBL Charge 4 to the beach or the pool without worrying about spills or even submersion in water