The new Power Box 360 offers premium 360 stereo sound from the 4 speakers and subwoofer. 2 times more sound power than the last generation Power Box. Rubbed rubber aluminum roll cage offers best in class protection against tough jobsite conditions. Weather resistant design means you can use it anywhere. Runs off of Bosch 14.4V and 18V Li ion batteries. Advanced digital tuner has great reception in more places. SD card USB auxiliary line out compatibility for playing your MP3's and WMA files. Charges Bosch 14.4V and 18V Li ion batteries. Includes 4 way power outlets, 12V DC adapter, powered USB port, and 6'' auxiliary cable.