DescriptionThe item is QI Receiver Wireless Charging Film for micro-USB of All Android Mobile. Easy assembly and disassembly, convenient to use in 3 steps as follows: Plug in the mocro USB of the phone, then place the coil above the battery and close the back cover. Ultrathin design, compact and lightweight without increasing additional weight of the phone.Features- Lightweight, only 0.3 oz, would not be sensed when it attached in the phone. - Universal, compatible with the most of andriod phone with micro USB port, such as Samsung, Nokia, HTC etc. - Multiple protection, over charged protection, over temperature protection and over voltage protection etc. - No tangle, this item enables your phone get charged by receiving power from the wireless charger pad. It features attaching to the battery with no cable needed. - This is the narrow-side up receiver, which means that the narrow side of the micro USB port is on the front side of the phone.Specification- Color: Black. - Material: Copper wire. - Size: 10.7 x 4.6 x 0.01cm. - Standard: Qi. - Input Parameter: 5V. - Output Parameter: 5V. - Port: Micro USB. - Charging Current: 5V - 1000mAh. - Operating Frequency: 100-200KHZ. - Transmission Distance: 2-6mm. - Charging Efficiency: 72%. - iOS device is not available.