The harmfulness of the repiter (emits ultrasound)

I put a repeater in the hallway. Emits ultrasound, which gives me a headache…. really gives me a headache. What to do with it?

Answer

What manufacturer is the repeater? On some repeaters and routers also noticed that they emit “ultrasound”, which can be heard in silence. The sound itself is produced by the power adapter. It is related to the power supply.

I think there is nothing else to do except replacing the device itself. You need to contact the store where you bought it or the manufacturer’s support.