Woofer delivers exceptional low frequencies and midrange. Tweeter design produces crisp clear high frequencies. Optimized dual passive radiators for deep bass. IP67 Rated waterproof and dustproof. Up to 12 hours of playtime on a single charge. PartyBoost - pair two compatible speakers for stereo sound (NOT included). JBL Portable app. Wirelessly connect up to 2 smartphones or devices simultaneously. Rechargeable 3.6V 4800mAh Lithium-ion polymer battery. Dimensions: 7" x 2.6" x 2.8". Includes USB-C charging cable.