Do poineering work in winter

to do business to be flexible, in different seasons can do different entrepreneurial projects, winter business market prospects are very broad. So what do you do in the winter small business, the following Xiaobian for you to introduce a low return on investment that is done to earn a small business.

the product size, appearance and lipstick. Due to the charging power supply for the 1.5 volt dry battery, the product can be set up by the unique booster circuit, the voltage will be increased to 5.7 volts to 1.5 volts, can meet the emergency charging of mobile phone use! >