USB to 3.5mm Mic Microphone Adapter 3D Sound Card for Headset Speaker Stereo Converter usb to 3.5mm microphone adapter mic converter inputFeatures:Support common speaker or earphone, microphone hole.Microphone recording and Karaoke function,with LED light shows the workingAdvanced digital technology.Multi-channel technology realizes dynamic sound.Dynamically rotating sound field. Freely switchbetween speaker and headphonemode.Free adjustment function of analogspeaker position.Convert analogsignal (microphone and CD, music, broadcast etc.) into digital and save function.Specifications:Chip: HFR8103Interface:USBMaterial:ABSSize: approx 5.1CMX2.2CMX1.2CM/2x0.87x0.47infor :USBpure digital sound output,enjoy virtual tracksSupport System: for Windows /2000/2003/XP/Win7Linux/WinCE(5.0 6.0)/Android2.1, 2.2, 2.3, Features: 23 acoustic field for protection modes, 16 rhythm for protection modesPackage Includes:1 PC x Mini USB to 3.5mm AdapterNote:Due to the problems of lighting effects and angles, there will be certain tolerances in the product, please understand. Please allow 0-2mm error due to manual measurment.