Small Round Pad Module for Micro-USB Android Phone+Universal QI Wireless Charging Receiver-interface down(Black) Receiving by the wireless charging transmitter power for Charging. Suit for all Micro 10 pin (Android) mobile Phone charging interface With universal micro USB charging jack mobile phones and other devices the reciever Built-in wireless reciever coil, can't be used alone, to be with wireless charging transmitter used together to achieve wireless charging function please confirm your phone micro usb interface is down or up,according to the picture we offer