Description: Feature: 100% brand new and high quality. Easy to use and safe. There is no chemical substance. Solar energy, rechargeable nickel-cadmium battery. Does not affect people, animals or pets. A sound wave of 4 seconds is emitted every 30 seconds. How to install: Press the ON/OFF button to turn on. Insert the device at least 8 inches deep into the ground. The device can be fully inserted so that the bottom of the housing is close to the ground. Do not hammer the device/you may need to dig a hole in the hard-packed ground first Specification: Solar panel: 2V/45MA polysilicon Vibration frequency: 400-1000HZ Vibration duration: vibration for 4 seconds, interval 30 seconds Color: as shown Material: ABS+PVC Charging time: 6-8 hours in the sun Height: 24.5cm Diameter: 6.3cm The package contains: 1 PCS x solar mouse repeller