The idea of an ELECTRIC-SHOCK COCKROACH HOUSE is like that of an electric mosquito racket. The way of high voltage and low current is used to kill cockroaches. Cockroach baits are first used to lure the cockroaches into the shock zone and when cockroaches are simultaneously exposed to positive and negative, they are immediately killed by electric shock. For the ELECTRIC-SHOCK COCKROACH HOUSE, there is not any drawback of traditional methods. The advantages are as follows, 1. Easy to use. 2. Environmental and safe. 3. Reused. 4. Without any pungent or volatile agent. 5. Long-term use. 6. Simultaneously capturing big and small cockroaches. 7. Price: $25 or so.