The YX-A11-R500800-R0890 is a wireless charging coil manufactured by CND-tek that complies with the Restrictions on Hazardous Substances (ROHS) directive. The coil is designed to allow devices to be charged wirelessly, eliminating the need for plugs and cords. It operates with any compatible Qi-Enabled device, for example, mobile phones, tablets, and smartwatches to easily transfer power. The coils are robust and reliable and are designed to withstand various conditions, such as temperature, pressure, and electrical shocks. Furthermore, they feature a small physical size of 500 by 800 millimeters and a resistance of 890 Ohms.