Four ??"unbalanced line level inputs with individual volume controls mixed to one ??"nbalanced output. Master volume control</br>Easy and simple to operate. Clean mixing?? professional sound quality.</br>Ultra-low distortion?? up to 20dB of gain?? S/N ratio over 100dB?? and a wide frequency response to bring out all of the details in your audio</br>Compact design with a heavy-duty steel construction?? smooth-turn ultra-stable pots?? and high-quality jacks for durability</br>The mixer can operate on a 9V battery?? or via an optional external AC/DC adapter for increased versatility. On/Off button with LED</br></br>Product Description</br></br>The