M12, wireless, jobsite speaker, Bluetooth connectivity with portable electronic devices up to 30' away, premium speaker with integrated bass port delivers loud, clear sound at all volumes, jobsite durability with rugged over mold &metal speaker grill to withstand drops, water & debris, 2.1a usb charger for all portable electronic devices, 3.5 mm aux in port for wired playback cable not included, integrated loop for easy hanging & transport, powered by all m12 red lithium batteries not included.