Home & Garden Yard Solar Power Mouse Mice Mole Rodent Repeller HNG 07 Material: ABS + aluminium / Certification: CE, RoHS Effective coverage: 650 square meters / Frequency: 400-1000Hz Built-in rechargeable battery: 1.2V / 800MAH Ni-cd / Rechargeable current: ?45MA with 90000LUX / Solar panel: 4V / 45MA / Panel size: 7 * 9cm / 2.8 * 3.5in / Aluminium tube: 27.5cm / 10.8in / his item is powered by solar energy, and it is ideal for keeping rodents away from your garden or lawns by ultrasonic waves. Features: Completely powered by solar energy. Easy and safe to use. No poison, no chemical. The ultrasonic will deceive them and makes them feel endangered, so as to force them away from the vibrating area. Transmitting ultrasonic every 30 seconds, the effective coverage of the repeller is 650 square meters. Ideal pest control device to keep rodents away from your garden or lawns by utilizing both sonic wave sound and vibration technology. Note: Firstly, please check the ground surface before using it (frozen soil, irrigated or waterlogged ground is not suitable). Dig a hole into solid earth to place the device. The density of the soil will greatly affect the effectiveness of the device; the more solid the earth, the better the device will be functioning. Package list: 1 * Solar Rodent Repeller 1 * User Manual