The Circle Qi Wireless Charging Pad is the world’s first Qi wireless charging pad with creative lighting-sensor tech in the market. It starts the moment you place down Qi-enabled device or device equipped with a Qi-compatible cover. No cables or USB interface required. Ultra Compact, coffee cup coaster size, delivers a modern, premium appearance, making it simple and fashion. Integrated smart chip inside it that resist the wireless charger pad from overheating, overvoltage and short circuit. Smart Lightning Sensor built in, the indicator of wireless charger could automatically dim off the indicator according to the darkness in the room. without any distraction caused by indicator, The qi wireless charger is compact in size and has rubber grip on its top and bottom that does not allow cell phones made up of glass body like Galaxy S6 to get skid off.