DC 2pcs Ultrasonic Electronic Anti Mosquito Mice Insect Rodent Pest Bug Control Repeller Killer. (Whie) Ultrasonic insect and rodent repeller lets you insect/rodent-proof your home Safe, environmentally-friendly, effective protection to help eliminate common household pests N.W:36g Plug Type: US Plug Brand Trademarks: DC , Record Number: 86526328, more details, please check by uspto gov.