The party is always on with the Block Party Ultra! Whether you're celebrating a birthday: an anniversary: a national holiday or any other special occasion: you can count on Block Party Ultra to deliver the fun. With 120 watts of power and a 10-inch speaker system: you'll easily fill any space with great sound. Stream music wirelessly from any Bluetooth enabled device. Or use the included microphone and 60 built-in vocal effects for the most karaoke fun ever. You can even add another mic (sold separately) and have karaoke duets! Create a custom light show that makes the most of your event: red and green for your Christmas party: red/white/blue for your all-American 4th of July or all 6 colors for all-out fun! Block Party Ultra really has it all: there's a USB charging port for your phone: an aux input for non-Bluetooth devices and a telescoping handle and built-in wheels to take the party wherever you want to go. Best of all: the battery lasts for up to 50 hours: so the fun keeps going: no matter how long everyone stays!