We are writing to introduce our company Kelan Opto-electronics Co., Ltd.. We are designer, manufacturers and exporters of Infrared Receiver Module series (32Khz, 36khz, 38khz,56khz), and Infrared Emitting Diode series(850nm, 940nm, 880nm) .More information welcome to visit our website at . If you are interested in our products, please kindly let us know by email via or .