Switchable mosquito expelling/killing device

A switchable mosquito expelling/killing device comprising a box body having a bottom, an electric mosquito incense mat insertion hole, a switch, a cell chamber and a transformer socket, the electric mosquito incense mat insertion hole being formed at a center of a top face of the box body, the switch being disposed on one side of the box body, the cell chamber being formed on a rear half of the box body, said device being characterized in that:

• a heater fixing seat is disposed in the box body opposite to the insertion hole, four corners of the heater fixing seat being supported by projecting posts and springs fitted therearound disposed on the bottom of the box body, a positive copper plate, and the springs resiliently supporting and pushing the positive copper plate disposed on the heater fixing seat to make the positive copper plate tightly touch an electric mosquito incense mat inserted in the electric mosquito incense mat insertion hole;
• an oscillating circuit is disposed on one side of the bottom of the box body, a buzzer being disposed beside the oscillating circuit and connected with the oscillating circuit and controlled thereby;
• and
• the box body can be inserted into the transformer socket which is plugged into an indoor power socket for indoor use.