Ultrasonic Pest Repeller [2018 UPGRADED] Eletronic Pest Control Repellent Plug In - Insects Repellent - Repels Mice, Bed Bugs, Mosquitoes, Spiders - Human/Pet Safe (2 packs) PRODUCT WARRANTY : We promise customers a 60 days warranty from date of purchase. If there is no pleased results after 3 weeks, we offer a refund guarantee .