... 2.Ultrasonic:400Hz-100Hz 3.Repell rat,mice,fly,mosquito Solar Mouse Repeller, Solar Rodent Repeller Model EPR-08:Techical specificationDimensions:43X15.5X15.5cmFrequency:400Hz ... the performance.2.For the best performance install 1 Solar Rodent Repeller every 30 metres strategically to force the rodents out of ... 40' FCL 10380 pcs, QTY per 40' HC 12384 pcs Solar Mouse Repeller