Flip 6 was engineered to deliver loud crystal clear powerful sound. Racetrack-shaped woofer delivers exceptional low frequencies and midrange. Separate tweeter design produces crisp clear high frequencies. Optimized dual passive radiators for deep bass. IP67 Rated waterproof and dustproof so you can take it anywhere. Up to 12 hours of playtime on a single charge. PartyBoost - pair two PartyBoost compatible speakers for stereo sound (NOT included). Stand it vertical or horizontal. JBL Portable app - get updates and product from phone unlock features tweak audio and more. Wirelessly connect up to 2 smartphones or devices simultaneously. Packed with more sustainable earth-friendly packaging. Frequency response range: 63Hz-20kHz. Rechargeable 3.6V 4800mAh Lithium-ion polymer battery. Dimensions: 7" x 2.6" x 2.8". Includes USB-C charging cable.