Features: 1. Removes underground rodents such as moles, gophers and voles by emitting every sonic pulse as a vibration transmitted through the ground without risk of contamination for men and environment. Rodents and snakes then perceive a danger zone causing them to leave the area. this product is Large effective range of up . 2. Safe and easy to use: Eco-friendly and safe for children and pets. for first time use, leave power switch "On" for 2 full days of sunlight to charge. 3.Battery Not Needed: It has a large solar panel,solar powered. Convenient mole, vole, gopher repellent ultrasonic working on highly efficient solar polycrystalline silicon battery, collecting sun power with high efficiency for operation at night or cloudy days. 4. Endorsed effective reliable: Definitely chases away moles, snakes, mice, voles, rats, gophers and groundhogs,so there is no need to pay for mole killer service to eliminate moles and other pests problems. 5. Humane: no need to use chemicals, poisons, sprays or traps. Replaces mole trap, mole killer, mole poisons, rat trap, rat poisons, gopher trap, vole trap, mice poisons and mice trap. Tips: Because the product is not chemical. It is recommended to use multiple devices to overlap providing even more coverage. Under heavy rain or snow remove the repellers from the ground and place them in a dry space. Notice: Due to the different monitor and light effect, the actual color maybe a slight different from the picture color Please allow 1-2cm differs due to manual measurement Specifications: Frequency: 400-1000HZ Color: as picture shown Size: 6x6x22.5cm Battery type: 1.2V 80ma NI-MH Solar panel: 2V 55MA Material: ABS includes:1 x Solar Mouse Expeller