Just insert the pest repeller on any wall charger between AC90-250V and it can emit ultrasonic sound at frequency of 10Hz-65kHz to effectively chase mice, insects, spiders, etc. with a coverage of 800~1,200 sq.ft. No harm to human and pets, super environmentally friendly, perfect use in the kitchen, living room, office and other indoor places. Designed with 2 modes, you can simply choose the mode to meet your need. Since ultrasonic waves cannot penetrate walls and solid objects, we recommend to put one in every room for best effect.
