The Ross Flanger is a flanger pedal designed for electric guitar. It produces a sweeping, jet-like sound by mixing the dry signal with a delayed copy of itself whose delay time is modulated by a low-frequency oscillator. The pedal features controls for Rate, which adjusts the speed of the modulation sweep, and Depth, which sets the intensity of the effect. A manual control may also be present to adjust the base delay time, altering the character of the sweep. The pedal is housed in a compact, durable enclosure typical of Ross effects from its era, with input and output jacks for mono operation. It is powered by a standard 9-volt battery or an external power supply, depending on the specific version.