I know what you're thinking. Because I thought it too.
"I tried one of those ultrasonic things. It didn't work."
You're right that most don't. Here's why:
Cheap ultrasonic devices from big-box stores emit a single fixed frequency. Insects habituate to fixed frequencies within days the same way you stop noticing a hum in the background.
PestLab uses variable, sweeping frequencies that constantly shift so insects never adapt, never habituate, never find a tolerance threshold.
It's also the only device that combines ultrasonic AND electromagnetic technology together, giving you coverage in open air AND inside the wall voids and furniture where bugs actually live.
No other plug-in device does both.
✓ Covers up to 300 sq ft per unit — one bedroom fully covered
✓ Silent to humans and pets — you won't hear a thing
✓ No chemicals, no sprays, no residue — safe around children, pets, and food
✓ Works 24/7 continuously — protection that never stops, never needs refilling
✓ Simply plug in — no preparation, no bagging clothes, no scheduling anyone