Our experts have rated the JBL PartyBox 330 Bluetooth Megasound Party Speaker as best for parties, thanks to its powerful 280 W JBL Pro Sound for big, room-filling audio and a beat-synced light show that brings extra energy to every playlist. Dual 6.5” woofers and twin tweeters create deep bass, clear vocals and a wide soundstage. AI Sound Boost analyses music in real time to increase bass and volume while helping to reduce distortion.Auracast pairing - connects compatible speakers for wider, more powerful soundJBL One app - controls music, sound settings and lighting effectsDual mic & guitar inputs - for karaoke sessions and live performancesUp to 18 hours of battery life10-minute fast charge for up to 2 hours of playbackTelescopic handle & sturdy wheelsIPX4 splash resistance