EC TechnologyUltra-slim Qi-enabled Wireless Charging Pad for Nexus 4 / 5 / 7(2013), Lumia 920, 928, Samsung, iPhone, Nokia, Google, LG, HTC, and Other Qi-enabled Phones and Tablets Compatible with any Qi-enabled device or a device equipped with a Qi-compatible cover or Qi standard receiver. Charge your Smartphone without cables and USB interface. Coffee cup coaster-sized (3.4 x 3.4 x 0.2in / 88  88  6mm); Input: 5V / 2A; Output: 5V / 1A. LEDs display charging status; designed with an energy efficient idle mode. Intelligent induction,prevent overcharging with standby mode once the battery is fully charged.