Because of Al alloy material and multiple functions,the USB hub will be a little warmer when using. it's normal phenomenon and has no effect on its performance.
2. Wi-Fi Interference
To prevent Wi-Fi interference, Please unplug ethernet cable and PD charging cable from adapter when not use.
Use for wireless Bluetooth-enabled devices, like smartphones, keyboards, mice, headsets, headphones, speakers, printers, modems, serial devices and more, also PC Computer Music USB Receiver Adapter for ps4 Wireless Mouse Keyboard
Baseus Enjoyment series (CATSX-D0G) is a USB hub with output ports USB 3.0, HDMI and USB-C connection. The hub allows you to expand the capabilities of your Mac, equipped with just one USB-C connector, or complement the interface set of other compatible hardware. The model is made of durable aluminum, has a compact size and LED-status indicator.