Features: Waterproof Qi wireless phone charging cradle features spring-loaded RAM Quick-Grip design and 10W maximum output Made of powder-coated, marine-grade aluminum, stainless steel components, and high-strength composite for durability and reliability in the most demanding environments For use with many wireless charging capable devices including Apple, Google, Samsung, Blackberry, Sony and others Fits devices 2.375”-3.25” wide, up to .875” depth RAM mounts backed by lifetime warranty; RAM electronics backed by 1-year warranty