Weifang new Jin Yuan economic and Trade Company   

The patent product of Shandong Weifang new Jin Yuan Electronics Co., Ltd. is newly developed: [patent application number: 02270398.5]-- full automatic electronic voice prompting device. Whenever you go out, she will automatically remind you to "bring the key and turn off the water and electricity and gas switch" automatically. The product is small, light, beautiful, durable, cheap and easy to install, that is, sticky. This product is the first domestic product, whether it is from the internal construction principle or the appearance and shape and color. It has been listed on the stock market in November 8, 2002 and has been put into production on a large scale.