Engineered out of carefully selected marble, the Charging Stone Xylo and Charging Stone Lamp Nox wireless charging pads blend the elegance of marble with Einova’s revolutionary E²Watt wireless charging technology to offer the fastest, safest, most energy-efficient wireless charging solution in the industry, with a 15W fast-charge output. Both come in a selection of multiple marble variations; however, the Charging Stone Lamp Nox comes with a built-in warm-white lamp, thus enhancing the design and functionality of the stone.