Soundcore Partycast is a Portable Bluetooth Party Speaker with 80 Watts of power, an 18hour playtime, and Light Show. Featuring PartyCast ™ technology that allows you to sync both Lights and Music with over 100+ Party Cast ™ speakers to create the ultimate Party Experience. IPX7 Waterproof means you don’t need to worry about water and with its USB charge out capabilities your phone will stay charged no matter how long the party lasts.