How to use it : Step 1: Open the back cover of Samsung Galaxy S4; Step 2: Stick the receiver card to the mobile phone's battery and the two protuberant touch points must touch the recesses next to the battery; Step 3: Close the back cover; Step 4: Place the mobile phone onto the Qi wireless charging pad(the phone and the Qi wireless charging pad are not included). Note: 1,Please complain to Amazon if the products you received do not conform with the pictures. 2,The receiver needs to work with the Qi wireless charging pad. Specifications: Compatibility: For Samsung Galaxy S4 Input: 5V, 1A Received power: 5W Charging current: 600-1000mA Power conversion efficiency: Up to 70% Color:black Receiver size: 6.15 * 4.93 * 0.08cm / 2.4 * 1.9 * 0.03in Receiver weight: 6g / 0.2oz Package list: 1 * Qi Wireless Charging Receiver for S4
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