USB hub and audio device in one: a USB multifunction extender with three additional USB ports, allowing you to connect mice, keyboards, USB drives, and more at the same time. No need to constantly switch devices; everything you need is readily accessible. 3.5 mm audio port for headphones and mic: connect headphones for private listening and use a microphone simultaneously. This expands your device's audio capabilities for calls, chat, music, and entertainment. OTG compatible for mobile devices: designed for use with mobile phones and tablets via OTG, enabling expanded peripheral support. TypeC powered, reliable performance: powered through a USB TypeC interface to provide sustained operation without interruptions in power supply, suitable for work and play alike. Designed for mobile and portable use: external sound card optimized for smartphones and tablets, expanding connectivity and improving audio quality on the go. Use scenarios Desktop or laptop setup: pair this device with a PC or notebook to add USB peripherals (mouse, keyboard, USB drive) while enjoying enhanced audio output and microphone input from the same unit. Mobile OTG use: connect to a compatible phone or tablet to type with a keyboard, navigate with a mouse, and transfer data from USB drives. Gaming and calls on the go: enjoy typing and gaming experiences on mobile devices, with improved audio input and output through the integrated 3.5 mm port and USB expansion.