From effectsdatabase:

The Ghost Echo Reverb is designed to emulate a vintage reverb unit. It 's capable of providing a little atmosphere all the way through to vast depths. The attack control sets the delay of the initial pick attack on the wet signal only. When playing staccato this registers as a slap back type echo hitting the reverb but when playing fluid lines it adds a massive depth and "fattens" up the sound. The dwell control is a fine tune function that enhances the decay. At first it may seem like it's not there but back it off and you'll miss it. The depth controls the intensity of the reverb.

 Features:

• All-analog signal path for warm, organic reverb tones
• Dwell, Attack, and Depth control knobs for precise sound shaping
• Compact and durable design suitable for live performances and studio use
• True bypass switching to maintain signal integrity when not in use
• Power: Standard 9V DC adapter (not included)

This pedal is in excellent condition. There are a few small chips along the sides. This pedal has been thoroughly inspected and tested by our expert tech.