The Solar Rodent Repeller works on gopher, vole, shrew and other destructive rodents. works in the garden, Lawn. It chases away mole and other ground rodents with sound instead of poisons. This repeller emits an intermittent combination of underground sound and vibration every 30 seconds . That mole and other burrowing rodents can't stand. However, it won't disturb household pets. The Advanced Solar Powered Mole Repeller has high-spec solar panels and an aluminum cannulation . The aluminum cannulation give more durability and makes it easier to insert in the soil. More importantly, aluminium is a better conductor of the repelling vibrations. Effective Range: 650 M2 Frequency: 400 Hz Rechargeable battery included: 1.2 V 600MAH Ni-MH SOLAR PANEL : 2V/45MA Operation current : 6MA Weight : 0.3KG Case raw material : ABS , Aluminum cannulation ( 30cm) Packing size :36.5×16.5×9 cm / PCS Carton size : 54×37.5×35 cm / 12PCS The total weight 6KG