Sound To Go™ (MP250) is an all-in-one micro speaker that is full portable and encased in an elegant brushed aluminium chassis. The USB cable powers and allows for audio streaming from any computer system, while its auxiliary input enables the use multiple host devices. Sound To Go™ (MP250) uses its 3×1¼ inch oval shaped passive radiator subwoofer, two 1¼ inch mid-range drivers and two 1¼ inch tweeters with a build in amplifier to provide exceptional audio performance above and beyond any build in speaker solution. Control the volume using the button on the device or through the host device. Sound To Go™ (MP250) is a great solution for home or business use.