Shenzhen Yihengyuan Technology Co., Ltd.'s brand, Dr.IT, was established in 2010, focusing on the production and sales of mobile phone batteries for more than ten years. We have a highly professional R&D team and production equipment, and we are committed to building IPHONE high-capacity mobile phone batteries. Lead the development of the industry. Our valued customers are all over the world, including Europe, North America, the Middle East, and Southeast Asia! Expand franchise agents in hundreds of countries around the world! At the same time, OEM customization is carried out for hundreds of distributors all over the world! Our batteries have CE, ROHS, UN38.3, MSDS and other certifications! Undertake a wide range of OEM brands (iPHONE, SAMSUNG, HUAWEI, OPPO, VIVO, XIAOMI, NOKIA, SONY, MACBOOK, IPAD, WCTCH BATTERY), etc.