Ultrasonic Pest Repellant

Silent operation: the ultrasonic pest repeller emits ultrasound waves that are beyond the hearing range of human-beings and home pets. no chemicals, no radiation and no smell easy to use: only need to plug it in the power socket, vertical to the floor, and it will start working low power consumption: costs less than 1 buck on electricity per month, low maintenance wide coverage: this mosquito repellent is suitable in house, offices, garages, warehouse, attics, hotels, basements, supermarkets etc. covering up to 1200 sq ft per device one room one unit: please install ultrasonic pest repeller away from sound absorbing materials and solid objects, and allow the ultrasonic waves to expand and to work