There are 100 people in the technology center .13 people in the proect department ,31 people in the prduct development department,17 people in the product research department,16 people in the testing center and 23 people in the engineering department .the average working experience of product developers is more than 4 years,the average working experience of product researchers is more than 5 years and the average working experience of product test is more than 3 years.