1, mass. The main material of this brand charger of Nanjing Siple Science and Technology Industry Co., Ltd. is high-quality graphene, which is conductive and safe. The materials of other companies are ordinary graphene. So the company's materials are better and the quality is better.
2. Price. The price of Nanjing Sepp Technology Industry Co., Ltd. is 40 yuan, and the price of other companies is 50 yuan. Therefore, the company's price is lower and the cost performance is higher and better.