Multi-port sound card: The external sound card has its own o chip, which can convert one USB port to multiple 3.5mm ports, allowing connection of 3.5mm o devices such as headphones, speakers, and microphones. Supports single plug and dual plug headphones simultaneously, no adapter required. Stereo Sound Adapter: Helps prevent electromagnetic interference and delivers stable, high-quality sound. Ideal for use with Skype, ICQ, Google Hangouts, and TeamSpeak. Suitable as a secondary o source for simultaneous operation of speakers and headphones. Wide compatibility: Works with common operating systems including Windows XP, 7, 8, 8.1, 10, Vista, and Mac OS. Plug and play—no drivers required. Simple and convenient: Easy to use with no additional software or drivers needed. Enables instant o playback upon connection. Features microphone and headphone mute controls for easy switching between output modes. o output volume can be adjusted using the built-in volume wheel. Mixing function: Built-in mixer allows electronic adjustment of output levels. Includes function controls for microphone mute, speaker mute, and volume up/down. Mini LEDs and surround sound support enhance o experience, especially for gaming. Dual headphone jacks and one microphone jack provide versatile connectivity for all external o needs. Color: Black Material: Plastic The multi-port splitter features a stereo sound adapter combo (2 headphone + 1 microphone), designed specifically for laptops, tablets, and ultrabooks, expanding one USB 2.0 high-speed port into three convenient ports. Functions as a flexible o interface compatible with laptop systems. Simply plug the adapter into a USB port, then connect your headphones or other o devices. Compact 3-port design makes this USB 2.0 high-speed hub portable and travel-friendly, yet capable of meeting everyday connectivity requirements. Ergonomic design with user-focused features, stable performance, and durable construction.