From Beatlock Technology:
DJ Mix Lite s designed to play continuous music with cross fading, beat matching mixes between songs. DJ Mix Lite has built in Beatlock Technology that makes it beat-aware. This technology does not alter your sound files, it just analyses them to find the beats. Knowing the beats, it is able to perform fully automatic quality DJ mixes. You just have to fill your play list and it's done. You can optionally edit the mix position and length, listen to it in your headphones to check you like it.