Chainpus (Chain Tay) is the member of Mae Tay Group (http://www.maetay.com/ ). As you could see from our web-site, Mae Tay produces much different stuff - plastic, rubber, molding, wireless keyboard for PDA & SmartPhone & Pocket PC, and coloring. Since we have a strong company background to help us reducing our production cost, we not only produce unbeatable price for PDA (SmartPhone & Pocket PC)wireless keyboard, we also provide very reasonable prices with OEM and ODM services. If you got any more questions about our products, please feel free to ask.