This is a Roland Space Echo knockoff from the 1970s. It's a noisy lo-fi type of effect but the echo works well. This is a unique hard to find effect box that will give you a one of a kind echo/delay effect. Some pots are a little noisy when you turn them but just needs a good cleaning. The unit seems to work fine.
Here's a sample of mic input with voice:
https://oldskool.s3.amazonaws.com/testEcho.wav
You can make the delay shorter or longer and feedback.
Will ship UPS in bubble wrap in well tapped box.
Good luck if you bid!