JBL Optimized long touring driver, Pro Sound Long life battery with separate tweeters and dual JBL bass radiator offers up to 20 hours of playback time with IP67 waterproof and dustproof rating Take Charge anywhere The PartyBoost feature allows you to stereo pair two JBL PartyBoost compatible speakers or connect multiple JBL PartyBoost compatible speakers for truly incredible sound. recognize Built-in powerbank molmolo devices without a