Can those electronic ultra-sound wave bug repellers somehow cause tinnitus?

There is currently no scientific evidence to suggest that electronic ultrasonic pest repellers can cause tinnitus. These devices emit high-frequency sound waves that are typically above the hearing range of humans, and while they may affect some animals, they are not known to directly impact human auditory health. However, prolonged exposure to loud noises can lead to tinnitus, so it's essential to ensure that any device used is within safe sound level limits. If you experience tinnitus, it's best to consult a healthcare professional.