The JBL PartyBox 310 is a powerful, battery-powered party speaker designed to bring the energy everywhere. It delivers 240 W JBL Pro sound, has a vibrant light show that pulses and strobes to the beat, plus built-in mic & guitar inputs for karaoke. With an 18-hour battery life, IPX4 splash protection, and a telescopic handle and wheels, it’s made to move — from backyard gatherings to late-night jams.