It is harmless to human body, safe and non-toxic.

The ultrasonic dog repeller mainly uses the principle of ultrasound.

First of all, the principle of mosquito killer is that mosquitoes like temperature, light, air flow and clustering.

An expert in ultrasonic repellers - Ningbo Jiangbei Soaring Plastic & Electronic Factory will explain to you the working principle of Mosquito Control Repeller today.