Since 1987, A4tech have been the reputable source of Mouse for worldwide buyers. Our professional R&D team employ the latest technology to develop and produce the finest mouse. All mouse are produced in our 14,000 square meter factory in China, and stringently tested by our 50 QC staff. A total of 200K units is shipped out every month. We also have OEM/ODM and channel marketing experience. Company Name: A4tech Co., Ltd.Established: 8/8/1987Capital: US$20,000,000.00Employees 1050Product Line: Mouse Trackabll, GamePad, Joystick. SpeakerCapacity: 3000K mouse