The Zoom L20R4 Mixer is a versatile and powerful digital mixer designed for both live sound and studio recording. It features 20 input channels, including 16 mic/line inputs and four stereo inputs, as well as a built-in recorder that allows you to capture multitrack recordings directly to an SD card. The L20R4 includes a range of effects and processing options, including EQ, compression, and reverb, making it easy to shape your sound. Its intuitive interface and wireless control capabilities allow for flexible and convenient operation. Whether you're mixing a live show or recording in the studio, the Zoom L20R4 Mixer provides exceptional performance and versatility.