Got big plans that call for big sound? The JBL PartyBox 520 knows how to set the mood with a vibey lightshow and our biggest boldest thumping sound yet powered by the all new AI Sound Boost tech to help get everyone moving and shaking. Our sound might be heavy but this speaker is easy to move whether we re setting up in the backyard by the pool or that place where our friend just dropped a pin. Every move is smooth with the PartyBox 520 s grippy handle and wide wheels that are ready to roll when you are. With up to 15 hours of playtime you canhost multiple parties before it s time for a recharge. And don t worry about any splashes or spills this speaker is designed to withstand the most raucous parties - fouls and all.