Specifications: Comes with advanced sound simulation software. Transforms your stereo speakers or headphones into a 7.1-channel environment. No drivers required, plug and play, instant audio playback. Compatible with all major operating systems. USB-powered; external power is not required. Excellent performance, no noise or power interference. Features an LED indicator light. 3.5mm port for connecting speakers or headphones. Dynamic sound effect. Easy switching between speaker and headphone modes. Type: Sound Card Material: Aluminum Alloy Interface: USB Chip: HS-100B Features: Easy to Use, Plug & Play, Great Sound Effect, Durable Size: 3cm x 2.5cm x 1cm / 1.18in x 0.98in x 0.39in (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow a slight dimension difference due to different manual measurement. Package Includes: 1 x Sound Card