These devices target household pests that have the capability to hear ultrasonic sound waves, such as: The consensus among ...

The sound is, as the name implies ... wanting to source boards and parts themselves. We’ve featured ultrasonic levitation devices before, from bare bones system driven by a NE555 to massive ...

Place the ultrasonic pest repellent device in an open area, away from furniture, curtains, and walls that can absorb or block the sound waves. Multiple Units: Use multiple devices to cover larger ...

But a hackier way would be to build a parametric speaker that focuses soundwaves into a narrow beam like [Shane] did with this ultrasonic sound gun. As the directivity of a soundwave depends on ...

DELRAY BEACH, Fla., March 10, 2025--synseer, an intelligent health and wellness company, will officially unveil HealthBuds™ ...

Using high-frequency sound waves to make tunable optical filters ... According to Jolanta Soos, sales and marketing manager of acousto-optic devices at Brimrose Corporation of America, the ...