Topjoy is a professional OEM/ODM manufactory for Android Tablet PC, Windows Tablet PC, action camera, OTG USB cable, etc. We having a 3000sq meter factory area with dust proof section for special models and 4 automated production lines, our monthly production can attain 100K. We have experienced engineers and QC engineers to ensure that every product goes through 5 stages of thorough quality control checks before shipping to our esteemed customers. Our 5 stages of thorough quality control checks: 1. Incoming quality control 2. Inspection again when put into mass production 3. When assembling in production line we will inspection again to assure it is ok before put into next procedure 4. Inspection when all assembling finished 5. QC again before packing. It is a tribute to our stringent quality control , competitive pricing and excellent after sale service support that we have a long list of customers from Europe / America / Asia. We are glad that we are steadily growing with the active and long term support of our satisfied customers! Topjoy main bussiness are: 1) self balancing unicycle, hoverboard, self balancing scooter. (www.pinwheelonline.com) 2) Tablet, 2in1 laptop, action camera, otg usb cable and so on. (www.topjoyint.com)