Extreme arachnophobia:How to keep spiders away?
This is a sonic emitter that advertises itself as a repellant to roaches, spiders, mice, and all kinds of pests. Spiders hear by sensing sound vibrations through hairs on their legs. It’s possible you could generate a specific sound wave that might disagree with them, but I know a family that bought this device and had no luck with it. The spiders stuck around.
