This product adopts wireless electromagnetic induction charging technology. A coil is built in the charge stand as well as the charge stand controls corresponding induction AC signals produced by the coil between both of the sending and receiving ends. When the charge stand is connected to power source, it will search and detect the receiving end, the blue indicator will turn on. Plus, it is compatible with NDSILL/NDSI console. It looks attractive, fashionable and is very convenient and practical. This elegantly designed product is your best gaming companion.