No driver installation needed for WIN2000, WINXP, WIN3003 systems – simply plug in your headphones or speakers and enjoy wonderful music instantly! Compact size makes it easy to carry. Compatible with pure USB2.0 digital audio output, offering virtual 7.1 channel processing capability. Key Features: A compact LED light adds a touch of style. Supports standard speakers or headphones, with a microphone jack. USB port for plug-and-play convenience, replacing traditional sound cards. Microphone recording function. Karaoke function for singing fun. Multi-channel technology for dynamic 7.1 channel sound effects. Dynamic rotating sound field for immersive audio. Free switching function between headphone and speaker modes. Analog speaker position free adjustment function. Mixer function for customized sound. Output level adjustment for optimal volume. 16 rhythm preset modes for various music genres. 23 sound field preset modes for different environments. Converts analog signals (microphones and line signals from CD, MP3, TV, tape recorders, etc.) to digital signals with backup capabilities. The exterior resembles a flash drive, with a sleek black casing and a simple USB interface for easy plug-and-play use.