A used "RevoL effects SURF PHASER" has arrived! This modulation effect pedal creates a unique sonic fluctuation by mixing sounds with shifted phases. The DEPTH and RATE knobs allow you to fine-tune the depth and delay of the effect sound, while the FEEDBACK knob adjusts the unique tone of the PHASER. ■Control DEPTH: Adjusts the phase difference. RATE: Adjusts the speed of the effect sound. FEEDBACK: The effect is intensified as you turn the knob. ■Specifications Input - 1/4" Mono jack (Impedance: 470kΩ) Output - 1/4" Mono jack (Impedance: 10kΩ) Power supply - DC 9V adapter (center negative) Power consumption - 3mA Dimensions - 93.5mm (D) × 42mm (W) × 52mm (H) Weight - 150g 【situation】 It shows signs of use such as scratches and dirt, but it is in good working order. 【accessories】 • Box and manual [Used item warranty] Sold as-is, no warranty.