Electro-magnetic Cockroach Expeller, Super Electro-magnetic Cockroach Expeller, cockroach killer Electro-magnetic Cockroach Expeller, Super Electro-magnetic Cockroach Expeller, cockroach killer Super Electro-magnetic Cockroach Expeller AR123General features and functions:-Use micro-computer IC technology for intelligent product design-LED for power on indication-Use variable low frequency 0.7- ...