Item A: 2-Pack Battery Operated ultrasonic rodent repellents powered by 2 “C” alkaline batteries, and lasts 68 days
Item B: Under Hood Rodent Repeller powered by 3 “AA” alkaline batteries, and lasts 47 days
Keep cats, rat, mice, squirrel and other rodents away from your indoor area, like your vehicle, garage, attic, basement, warehouse, barn, kitchen, living room, etc.
These repellers emit ultrasounds vary between 25,000hz to 55,000hz (out of human hearing range)
Warranty: One-year from the date of purchase replacement and refund warranty.