Power your smartphone while using GPS navigation as you ride with the Tough-Charge X-Grip Waterproof Wireless Smartphone Charger for Motorcycles from RAM MOUNTS. The Tough-Charge X-Grip charger supplies up to 10W of power to your Qi-compatible smartphone via the included hardwire charger and USB cable. The The spring-loaded Tough-Charge X-Grip is designed to mount your phone quickly while leaving buttons and ports open for use. Simply squeeze the arms to open, insert the phone, and release to let the four rubber-tipped corners securely hold the phone in place. For added security, use the built-in adjustable support leg and included device safety tether. The U-bolt installation hardware attaches the charger and double-socketed arm to handlebars that are 0.5 to 1.25' in diameter.