The Choetech Fast Wireless Charging Pad T550-F can charge your smartphone up to 15W. Instantly charge your phone or earbuds simply by placing them in the center of wireless charging pad. Never fuss around with plugging and unplugging cables again, just set down and power up. The Wireless Charging dock is designed for convenience. Don't fumble with your phone case, can still charge through 5mm or less (Magnetic and metal attachments or cards will prevent charging.) The green LED Indicator will flash for 2s if power source is connected, then will be on for 60s if recognizes your phone or earbuds well.