Transmitting ultrasonic via vibration. Pest repeller is used to affect the acute hearing of underground rodents,with very effective preventive effect. The ultrasonic will deceive them, making them feel endangered,so as to force them away from the vibrating area. Transmitting ultrasonic every 30 senconds.
Solar Panel:Mono-crystal,multi-crystal,non crystal silicon Power:0.2W Current:45mA Voltage:4.5V Build in Ni-MH battery:500-600mAh Effective Range:500M2 Frequency: 300 - 700 Hz Unit size:43.8(H)×15.4(D)cm Body Materials:Plastic Installation Available:Insert into the earth or fit on the cement ground