Seymour Duncan Vapor Trail Analog Delay Pedal Bypass: True bypassPower: Internal 9V battery or external 9V-18V regulated power supply. The Vapor Trail is an analog delay pedal capable of warm, authentic vintage tones, lush modulation and a few extra tricks. Everyone loves the warm, smooth, ambient vibe of a Bucket Brigade Device (BBD) analog delay pedal. The Vapor Trail gives you those classic tones but with a TRS insert jack that lets you process the repeats through additional effects to unlock your creativity and redefine what you can do with analog delay. The Vapor Trails natural compression and treble-smoothing characteristics support rather than overpower the dry note at least until you want to max out the controls to make ray-gun and spaceship noises.