Specifications:   ◠Standard: QI   ◠Output: 5V/700mA   ◠Port: Micro USB   ◠Size: 69*41mm   ◠Weight: 5g How to use it :   ◠Step 1: Plug the micro usb to your phone's usb port.   ◠Step 2: Attach Qi wireless receiver patch onto the battery.   ◠Step 3: Close the back cover.Place your iPhone onto any Qi standard wireless charger for wireless charging at once. Note:   ◠Please complain to Amazon if the products you received do not conform with the pictures.   ◠This item is specially designed for Micro USB of all Android mobile phones (Narrow-interface Up). please check out your Micro USB interface before purchasing. Package includes:   ◠1 x BestFire Qi Wireless receiver for Micro USB (Narrow-interface Up) BestFire brand products have been well tested before delivery, but we cannot 100% guarantee the items when delivered to you. Any problem please feel free to contact us through Amazon Email System and we will do our best to serve you. Â