The M50KΩB 70 1E Linear Slide Potentiometer Audio Fader Control is a rectangular slide potentiometer designed for audio fader control applications. It is a unit sold in a quantity of 8, making it ideal for use in a variety of electronic equipment and supplies. With its linear taper and precise control capabilities, this slide potentiometer is a reliable choice for controlling audio levels and other settings in a wide range of industrial and commercial products.