“Product Features: Works by continuously transmitting a powerful series of ultrasonic waves that drive away pests and remain completely inaudible to humans and pets. Nontoxic and harmless to humans ; for people and pets, an alternative to toxic chemicals and dangerous traps. Protects an area of up to 80-120 square meters per unit. Low power consumption, suitable for long-term use . Does not affect the operation of radio, television or other electronic devices. Specifications: Easy and convenient to use. Safe, environmentally friendly Non-toxic and harmless to humans and pets Protects an area of up to 80-120 square meters Low power consumption, suitable for long-term operation. Powerful range of ultrasonic waves that protect ; drive away things. Does not affect the Operation of other electronic devices. The Pest Control Repeller is the most humane method to be free from pests. Pest species: Cockroach, mouse, rat, spider, pug ; bugs, ants, bed bugs, fleas, flies. Specifications: