The PW40BATBT PA System is Powerwerks most portable speaker tower yet. With easy-to-access controls, this highly portable 40-watt package includes a rechargeable battery and built-in Bluetooth to take your audio where you need it. More on the Bluetooth if needed: The Powerwerks Bluetooth PA Speaker Towers are easy to pair with any smartphone, tablet or other Bluetooth device. From your Bluetooth device, select and pair to the Powerwerks product in the list of available devices. It’ll be named after the Powerwerks Model you are connecting to. Once the initial pairing has been made, your Powerwerks Speaker tower remembers the connection, so the next time you connect it’s even easier.