Hamee 2019 Upgraded Ultrasonic Electronic Pest Repeller The chip in this Hamee 2019 Upgraded Ultrasonic Electronic Pest Repeller ($30) helps keep away pests like rats, spiders, ants, cockroaches, mosquitoes, fruit flies, flea, and so much more. Plus, it's safe around children and pets. Image Source: amazon.com Hamee 2019 Upgraded Ultrasonic Electronic Pest Repeller $30 from amazon.com Buy Now