4U2SMART was founded in 2001 to focus on high performance digital audio products development. The first product - 4U2SET, the ultimate sound engineer's tool is now launched. 4U2SET is the world first one palm size RTA that features 2 channels simultaneous operation. As a real time analyzer, 4U2SET is capable process real time analyzing with 48,000 calculation per second for 2 channels. And real time comparison can be achieved as the most unique function.