MOSKYAUDIO MULTI SPRING REVERB Guitar Reverb Effects Pedal Attack/Dwell/Depth/GAIN/4-Mode Knob DC 9V 6.35mm Input/Output Interface Electric Guitar Reverb Effector with True Bypass Features: 【Versatile Pre-Delay Control】This guitar reverb pedal boasts a terrifying 30ms – 150ms of pre-delay, controllable via the Attack knob. This allows for everything from a quick, rockabilly slapback, to viscous pools of ectoplasmic reverberations, providing a wide range of sound effects to suit your playing style. 【Dynamic Sound Depth】The Depth control sets the intensity of the reverb, mixing in the wet signal with the dry. This creates a massive ambient "depth" that fattens up the sound, adding richness and fullness to your music. 【Infinite Loop Oscillation】The Dwell control sets the length and thickness of the decay, controlling how long the notes reverberate. At the maximum setting, it descends into an infinite loop of self-oscillation, creating a unique and haunting sound effect. 【Four Reverb Modes】This pedal features a 4-mode modulation selector knob, offering four different reverb modulation modes. This gives you the flexibility to create a variety of soundscapes, from subtle echoes to dramatic, spacey reverberations. 【Boost Switch and Control Knobs】The pedal includes a boost switch for adding gain, and control knobs for Attack and Dwell. These allow you to adjust the pre-delay length, decay length, and oscillation pitch, giving you complete control over your sound. Specifications: Controls: Attack/Dwell/Depth One Toggle Switch: BOOSTE Add the GAIN 4-Mode Modulation Selection Knob: 4 Different Reverb Modulation Modes True Bypass Power Supply: DC 9V Power Adapter (power center is negative), but this product does not include Input Impedance: 10M ohm Output Impedance: 1k ohm Product Color: Black Product Material: Aluminum Alloy Product Size: 11.5 * 6.5 * 5cm/4.5 * 2.6 * 2inch Product Weight: 320g/11.3oz Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. Please allow slight manual measurement deviation for the data. Packing List: 1 x Electric Guitar Effects Pedal