Includes a DSP (Digital Signal Processor), 31 Band graphic EQ, 10 individually assignable outputs, Independent equalization on each of the 10 outputs, Independent high pass, low pass, and bandpass filters, Each channel can be delayed independently up to 10ms, Clipping detection and limiting circuits, Retains factory parking sensor chimes, Retains OnStar voice prompts, Adjustable chime level, Can be used in amplified and non-amplified models, Easy behind the radio installation with pre-wired harness, Bass knob included for level control of subwoofer amp, Settings adjusted via Bluetooth in a smart device application (tablet or mobile phone), compatible with both Android and Apple devices, Read, write, and store configurations for future recall, Password protect feature available in the mobile app, Micro-B USB updatable.