Power through a day on the job with clear, powerful sound from the Stack Pack radio and its dual full range speakers and a 5-1/4 in subwoofer. Listen via its AM/FM radio or stream audio wirelessly up to 150 ft away via Bluetooth™, which also allows up to two radios to be paired for an even more immersive sound experience. Its IP64-rated protection withstands wet and dusty jobsite conditions. Power the radio via its AC cord or go fully wireless with any Flex™ 24 V battery. The radio also features pass through charging, so you can power the radio via its AC cord and charge your Flex™ 24 V battery simultaneously. USB-A and USB-C ports allow you to power or charge additional devices like phones and laptops. The Stack Pack radio is compatible with select Stack Pack tool boxes and organizers via its quick-connect latches for easy transportation, organization and jobsite listening. All this, powered by the same Flex™ Advantage as Flex™ power tools - providing unmatched battery power, runtime and fast charging speed (battery sold separately).