Max Or Flex, 20V, 60V, Lithium-Ion Battery Charger & Bluetooth Radio, Able To Be Powered By 20V/60V DeWalt Batteries As Well As AC Power Cord, 3A Charging Of 20V/60V DeWalt Batteries When Unit Is Plugged Into AC Power, Bluetooth Connectivity Up To 100', 2 Additional AC Power Outlets, NFC Wireless Connectivity, Audio Visual Remote Control Protocol Allows You To Control Your Device From The Radio Interface, Allows You To Keep The Device In A Safe Place & Skip To The Next Song Or Hit Replay On The Radio Interface.