The RAM® Quick-Grip™ 15W Waterproof Wireless Charging Mount with Tough-Claw™ (RAM-B-400-A-UN14W-V7M-1) combines secure, one-handed phone access with fast, Qi-compatible wireless charging. This waterproof charging cradle uses the spring-loaded RAM® Quick-Grip™ design to provide a reliable hold and easy insertion/removal. Rubber-coated top and bottom cups keep your phone firmly in place while delivering up to 15W of power as long as it’s within the listed compatible dimensions. A device tether is included and recommended for demanding outdoor environments. The included RAM® Tough-Claw™ base clamps quickly onto round, square, or irregular rails and bars from 0.625” to 1.14” in diameter, making setup fast and tool-free. A connected Type-A male pigtail with an in-line power switch lets you turn the charging module on or off as needed. For in-vehicle use, simply connect the pigtail to the included 1.2m Type-A male to Type-A female extension cable. For open cockpit applications (i.e. motorcycles, ATVs, boats, etc.) apply silicone grease to the USB Type-A male & female connector to protect the connections and prevent corrosion. Failure to do so will void warranty.