chase moles, gophers, rats, voles, and other burrowing rodents away rather than harmed. No chemicals or poison is used, in this process. 【High Quality】Tequipped with solar panels.Powered by a solar cell no need for additional batteries. save energy and save electricity. The rodent-repellent solar panel is protected in a waterproof ABS plastic housing. But it can't be soaked in water for a long time. 【Wide Coverage】Each mole spike covers up to 6500, sq. ft (45 ft in radius). It is recommended to place one solar snake repellent every 45 feet, providing even more coverage. For the first time before use, it is best to allow exposure to the sun's solar panels for two days, then insert in the affected area, so that there will be a better effect. 【Weatherproof Solar Sonic Mole Chaser Spikes】Keep the Solar Panel Clean - Wip it regularly with a damp cloth. A dirty panel will reduce the amount of sunlight available to charge the unit’s batteries. NOTE: The gopher repellent must be used continuously for a lot of days before successfully driving rodents out of the area. 【Good Shopping Experience】Satisfying customers is our top priority. If you have any questions about mole-repellent ultrasonic solar powered, please feel free to contact us. We will respond to you within 24 hours.