The Mod Delay is a versatile delay pedal with three algorithms: tape emulation, analog BBD emulation, and digital delay. It has four controls for level, time, feedback, and tone. The pedal offers three ping-pong panning settings and can be synced via MIDI or analog clock. It supports tap tempo and offers modulation options like ducking delay, delay send on high notes, self-oscillating feedback, and squished feedback effects.