Description: Made of durable aluminum alloy materials, frosted appearance, noble, elegant, compact and portable. 3.5mm Device: USB 2.0 audio sound card, normal stereo, earphone, headphone, headset or microphone with 3.5mm , especially for gaming headsets. 2 in1 Headset Adaptor: USB connector with 480 Mbps transmiion speed for instant audio playback, allows the headset and loudspeaker mode to switch freely. Virtual 7.1 channel sound simulation software can improve the level of gaming audio, suitable for sound card in the computer laptop desktop. Plug and Play: No extra drivers are needed, compatible with Windows98 / SE / ME / 2000 / XP / Server 2003 / Vista, Linux / MacOS. Specification: Material: Aluminum alloy Size: Length x width 172x13mm/6.77x0.51inch Package Includes: 1 Piece USB Sound Card Note: 1. Please allow 1-3mm error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!