Plug and play; Suitable for computers / PCs w/o sound card; Built-in microphone, adopts USB external technology, convenient to use; With LED indicator; USB 2.0; Full speed: 12Mbps; With keys of output mute, volume + / -; USB power mode: no need extra power supply; Supports 16-bit, 48KHz; Supports virtual 7.1 sound effect; Conforms to Apple headphone with microphone; Supports OS: Windows 8, Windows 7, Vista, XP 32/64-bit, MAC OS and Linux.