The RAM® Tough-Charge™ with X-Grip® Technology is the world's first patented, universal waterproof wireless charging cradle for phones. Designed with spring-loaded RAM® X-Grip® Technology, this cradle features an 'X' design that expands and contracts to secure nearly any phone while taking advantage of Qi wireless phone charging. All four arms feature rubber-coated caps that hold your phone firmly in place, and the open design keeps buttons and switches accessible on the sides of phones. To insert your device, simply squeeze the arms on one side of the cradle and place your phone inside before releasing the arms. This Qi wireless charging cradle ensures your compatible phone charges no matter what position it's placed at. For added security and peace of mind, a device tether is included that's recommended for outdoor applications. In addition, a support leg can be adjusted to the ideal position or removed altogether. The connected Type-A male pigtail connector features an in-line switch that allows you to turn off the wireless charging module when not in use. For in-vehicle charging, attach the pigtail to the included 1.2 meter Type-A male to Type-A female extension cable. Waterproof Qi wireless phone charging cradle features spring-loaded RAM X-Grip technology 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. RAM Mounts backed by lifetime warranty, RAM electronics backed by one-year warranty. Holder dimensions: Width range: 2.375" - 3.25". Depth range: 0.875" max. Ball / socket size: B size (1"). Weight capacity: 2 pounds. Materials: Marine-grade aluminum, high-strength composite and stainless steel. Power specifications: Input power: 5V-2A; 9V-1.67A. Output: 5W / 7.5W / 10W. Conversion efficiency: 85% max. Transmitting distance: 5 - 8 mm. Working frequency: 110 - 205KHZ. Product standard: WPC v.1.2.4. QI compatible. Compatible with QC2.0/QC3.0 power supplies. Compliance: Over current protection, short circuit protection and over temperature protection. Certifications: FCC, IC, CE, e-Mark, WEEE, RCM, and RoHS Compliant. Note: This holder will NOT charge phones that DO NOT have built-in wireless charging capabilities, such as the Apple iPhone 7 or Samsung Galaxy S5. Detailed Specifications: This RAM® Tough-Charge™ with X-Grip® Technology wireless charging kit for motorcycles includes a B size diamond base featuring a 1" rubber ball - perfect for attaching to your choice of B size RAM® double socket arm. Kit for motorcycles includes wireless cradle, B size diamond ball base, and hardwire charger; attaches to B size double socket arms. Hardware included: (1) safety tether. (1) glue tube for rubber caps. (1) cradle leg. (1) cradle leg cover. (1) silicon sleeve for USB waterproof connection. (4) small zip ties. (4) large zip ties.