Transfer the picture video from SD/TF/U disk directly into the mobile phone Connect the keyboard Connect the HUB Connect the network card, the mobile phone realizes wired Internet The type-c interface supports the power supply 3.5 interface for audio output 3 ports can be used at the same time Plug and play, no need the App, on-the-go data, sync and store your files anytime and anywhere Note: No response when connecting products? 1) Improper product connection: Please pull out the product and reinsert 2) The phone case is too thick: Please remove the phone case and reinsert it. 3) Mobile phone external device current protection: Please restart the phone once No response when connecting U disk/SD/TF? 1) Transmission rate is 90M bit/s; 2) SD/TF card capacity must be no more than 64GB No response keyboard current is above 100mAh when connected to the keyboard (This product only supports device connection with current is no less than 100mAh) Connection RJ45 is not response ? The product is not properly connected. Please make sure that the RJ45 USB cable is connected to the USB interface of the product. The first time you connect the headset, you need to wait 3-5 seconds Specification: Material: oxygen free copper core Size: 2.01x4.8x0.39inch Interface: type-c (PD 5V/3A fast charge)/3.5mm audio adapter/USB OTG adapter Connect the USB adapter to the keyboard to get faster typing speed when chatting by your phone or pad Compatible with: Xiaomi, Huawei, HTC, Nokia, Sony Xperia, ZTE Nubia, etc