Shenzhen Tianyi technology Co.,Ltd is engaged in the R&D, production and sales professional manufacturer. We are located in Shenzhen City Guangdong Province China,and we also have our own factory in Dongguan Province,covering an area of 2000 square meters and having hundreds of staff, We have good research, design, QC and production ability in the mobile battery field that we have been in the mobile phone battery industry for 13 years,We have advanced examining equipment and product technique and a perfect quality control system. We not only can offer products of our company, but also supply shortcut, and complete and individual design and service according to the demands of customers. We understand of customers' demand in this competitive market, So we put product's quality in the first place.In addition, we offer the best quality products and best price and best after-sales services and fast delivery time. We insist on the principle of 'Quality First, Reputation Supreme, Customer Foremost, and Service the Best'. We warmly welcome all domestic and overseas customers to contact us for mutual benefits and win-win cooperation.