Skytec STM-2300 The Skytec STM-2300 is a mixer with USB port allowing you to directly connect an USB stick with MP3 files to the MP3 player. The 2 channel mixer features switchable line/phono inputs and master and monitor outputs. Each channel has a 3-band EQ and the sound quality and dynamic range makes the mixer to one of the best in its class. The microphone channel comes with a 2-band EQ and a level control. Comes with a crossfader and phone and monitor -switches to assign the output signal. An attractive mixer for anyone wanting to to play music or sharpen their skills.