Color White Material ABS + Electric Components Quantity 1 Piece Compatible Models Samsung phones with micro USB 11pin interface and MHL function such as GalaxyS3 / S4 / S5 / note2 / note3 Output Current 2 A Output Voltage 5 V Input Current 2 A Input Voltage 5 V Certification CE FCC Other Features It has the function of HDMI video output charge data transmissionOTG and so on. And there are three USB interfaces on the dock: one is for data transmission the other two is OTG interfaces which can connect mouses keyboards or USB flash drive. The HDMI interface can connect with the HD TV and transfer your phone screen onto the TV. The Micro USB interface is used for charging your phone. And there is a audio interface which can link with earphones or speakers with 3.5mm interface. Packing List 1 x Charging Dock