Solar powered: The device will automatically charge during the day from the sunlight, saving you energy and costs. Upgrade: To get a set of four repellers! Waterproof: The device is waterproof, so you can leave outside all year round. Deterrent: Protect your garden from rats, snakes, moles, bugs and other creatures with this ultrasonic repeller. Rat repeller: Get a set of two solar ultrasonic rat and snake repellers. Material: Made with ABS, PC and PP. | Solar Ultrasonic Garden Rat Repeller | Wowcher