Our effective mole expeller functions with free solar energy. The efficient Solar module produces enough energy for the mole expeller, even during bad weather. It makes a penetrating noise with 400 Hz, which irritates the mole. Furthermore, the mole expeller vibrates. The combination of the tone and vibration creates such an unpleasant noise, that the mole will avoid your garden in future. You will have a mole-free garden very quickly and easily. Product advantages: Immediate readiness for operation Power storage of up to 7 days in the darkness Powerful solar module With vibration ON/OFF switch With rechargeable battery Weather proof and water proof Stable bar Specifications: Radius of action: 2296 ft2 (depends on the structure of the soil) Frequency area: 400 Hz Intervals: 2 Seconds on, 30 Seconds off (Pause intervals) Height: 15.5 in, Bar diameter: 1.2 in Colour: black Scope of delivery: 4 x Mole expeller 4 x Rechargeable batteries 4 x User manual