Electro-magnetic & Ultrasonic Bug Expeller

Keep unwanted insects out of your home or office with the Electro-magnetic & Ultrasonic Bug Expeller. Its major function is cockroach expelling, and its effective expelling range area can reach 100m2.
Features

Uses micro-computer IC technology for intelligent product design
LED for power on indicator
Uses variable low frequency 0.7-9KHz electro-magnetic wave operation
The indoor power line network strengthens the electromagnetic wave transmission
Low power consumption, suitable for long life operation