no function except a test button (beep) test is working, totally not worth the price
Start using it;not sure it work or not,monitor for a week for the result.
Hav to use a period of time (3-4weeks) before seeing results and plug in possibly into a socket nearer to floor. First notice, no more fruit flies. So far so good!
PEST STOP Pest Repelling Series - Ultra-Ionic/Ectro-Vibrawave/Ultrasonic Electronic Indoor