The Allen & Heath CQ-20B is a compact 20-channel digital mixer featuring 96kHz FPGA processing 16 mic/line inputs built-in dual-band Wi-Fi Bluetooth connectivity and 24x24 USB/SD multitrack recording. Designed for remote control via the CQ MixPad app it offers advanced features like Gain Assistant Feedback Assistant and four Smart-FX engines making it ideal for live sound studio recording and installations. 20 input channels with 96kHz FPGA processing 16 mic/line inputs (8 XLR 8 combo XLR/TRS) and 2 stereo line inputs (4 x 1/4" TRS) Built-in dual-band Wi-Fi (2.4GHz/5GHz) for wireless control Bluetooth stereo input for easy audio streaming 24x24 USB-B audio interface for multitrack recording and playback 24x24 SD card recording and playback capability Four Smart-FX engines with reverb delay and modulation effects Gain Assistant and Feedback Assistant for streamlined setup Automatic Mic Mixer (AMM) for improved speech applications Assignable headphone output and dual footswitch connections