JBL Partybox 320 Speaker - Black Product Description JBL Pro powerful sound It features a 6.5-inch woofer that delivers powerful, deep, and clear sound, even at high volumes. This audio quality is achieved thanks to dome tweeters and a pair of 25mm tweeters that produce crisp, clear highs. lighting It offers a dazzling light show featuring starlight, stunning light trails, and powerful effects. The lighting is synchronized to the rhythm of the music to create a breathtaking visual experience. Long operating time It boasts up to 18 hours of runtime on a single charge. And if you need even more runtime, you can simply replace the interchangeable battery or use the fast-charging feature to get an additional two hours of runtime after just a 10-minute charge. Easy to carry It comes with a handle and wide, sturdy wheels, making it easy to carry and move from place to place. Splash resistant It has an IPX4 splash resistance rating, which means it can be used outdoors and is unaffected by small raindrops. AI voice enhancement technology AI Sound Boost analyzes the audio signal in real time using artificial intelligence algorithms to optimize speaker performance and deliver more powerful, clear, and distortion-free sound. Multi-speaker connection You can connect additional compatible speakers using JBL Auracast technology for a richer, more expansive audio experience.