Spec: Transmitting ultrasonic via vibration. Mole repeller is used to affect the acute hearing of underground rodents, with very effective preventive effect. The ultrasonic will deceive them, making....
Ruichao electronics ( HK) Co., Ltd. was established in 2007. Is the company which development and production of sanitary products, LED-emitting products Electronics manufacturers and other related....
1 As the built-in device generating electricity without the battery and any other power connets to water, LED will emit the light. 2 When water flows down, the LED will light instantly an....