Zinc Alloy ring; Compact wireless charger with backside suction for attaching to device; Rotating ring on back that transforms device into stand; Wireless charging mat feature is designed to charge most remote wireless charging enabled smartphones and operates at lower temperature than most traditional chargers; Power/Technology:  Input: 5V/15A; Wireless output: 5V/1A; Wireless charging distance: 6-10 mm (023”-039”); Features LED indicator light; Instructions and 4 pin USB charging cable included; Note: Most cases must be removed from phone for wireless charging to work; WARNING: Refer to the item manual for safety and warning instructions; Product Size: 1.75 w x 2.25 h x 0.875 d