20-Channel Digital Mixer with iPad Control & Built-in Effects The DM20M is a compact and powerful 20-channel digital mixer by Soundking, featuring a 7" HD touchscreen, iPad remote control via WiFi, and advanced DSP with built-in effects. It offers 16 buses, 24-bit/192kHz audio quality, and intuitive control, making it perfect for professional audio applications such as recording studios, live performances, and conference halls.