Ultrasonic mice repeller can give out a kind of peculiar and strong ultrasonic wave which can irritate the nervous and audio system of the mouse and other pests , make them uncomfortable and unpleasant and drive them away. The pestwill become listless,poor appetite and will loss their reproduction and invasion ability. Feature 1.The ultrasonic wave coming out of this machine is alternate and changeable which can not make the pests have adaptability and immunity . 2.Large output and two louer-speakers. Good effectiveness for repelling the pests. 3.Mewing & mouse crying which can drive the pests away quickly and effectively. 4.AC/DC dual power supply. When there is power failure,SD-003 can be powered by the rechargeable battery automatically. 5.A metal hook attached with which the stalling direction of SD-003 can be rejusted so as to obtainthe best effectiveness for repelling the pests. Usage 1.Mainly SD-003 can expel the mice/ mosquito . Also it can have some restraints to the following pests: cockroach, ant, spider, cricket, bug, flea, moth ,bat etc. 2.Our products can be used in the following places: family ,warehouse,grain depot, garage,shop, hotel, restaurant, hospital, office, machine room etc. 3.The effective coverage is around 300 square meter. -