Powerful JBL Pro Sound: Powerful JBL Pro Sound takes the spotlight, with crystal-clear highs from dual silk-dome tweeters and deep, punchy bass from a mighty woofer that's louder and livelier than ever before. Dynamic lightshow: Is it even a party without a lightshow? Dance the night away with glowing light patterns and strobe effects that sync to your music. Karaoke anywhere: 'Time to belt it out with the crew—anytime, anywhere. The wireless mic got built-in echo so we always sound our best, and with Smart Key Change in the JBL PartyBox app, the track shifts to match our key. No wrong notes, just good vibes. Or dance to your favorite playlists with aux-in and USB-C connectors. Up to 15 hours playtime: Keep the good vibes going with up to 15 hours playtime on a single charge. And if that’s not enough, just swap in a spare battery (sold separately) and double the great time. Or charge for 10 minutes to get an extra 80 minutes of playtime. Convenient handle and shoulder strap: With a handle right in the center, the PartyBox On-The-Go 2 feels balanced for carrying anywhere. Plus, its wider, thicker shoulder strap hooks on easy, so we just sling it over and go wherever the night takes us.