6-Pack Alpha Pair Ultrasonic Pest Repeller $23 at Amazon

amazon.com has the 6-Pack Alpha Pair Ultrasonic Pest Repeller for $23.10 when you clip the 30% coupon on the product page. Shipping is free.

  • Emits a consistent frequency of 22- 55 kHz that is inaudible to humans and pets, each covers up to 1,200-sq. ft.