Humane and safe way to get rid of moles, voles, groundhogs, gophers and other burrowing rodents, they are chased away unharmed. No chemicals or poisons. Solar powered mole repellent: This mole repellent is charged by its solar panel. 4 hours of solar charging is enough for 5 days of work, no battery replacement needed. Extensive coverage: Works in a circular pattern, approximately 12 meters in diameter. Therefore, it is recommended to use 12 solar powered mole repellents per acre. Weatherproof solar powered sound wave repellent: Sound pulses are emitted 3s sound pulses every 30 seconds, it penetrates the soil and forces pests to evacuate the area covered by the sound. Generally, it takes about 2-4 weeks to drive moles and voles out of your garden. Then your garden will be free of these troublesome animals after a few weeks Color: green Material: plastic Package contents: 8 x Solar powered rodent repellent Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be a little different from the real thing. The allowed measurement error is +/- 1-3 cm.