External Usb To 3.5mm Mic Headphone Stereo Headset 3D Sound Card Adapter For Speaker Features Support common speaker or earphone, microphone hole.Microphone and function,with LED light shows the workingAdvanced digital technology.Multi-channel technology realizes dynamic sound.Dynamically rotating sound field. Freely switchbetween speaker and headphonemode adjustment function of analogspeaker position.Convert analogsignal (microphone and music, broadcast into digital and save function.Specifications:Chip: HFR8103 USB ABS Size approx 5.1CMX2.2CMX1.2CM/2x0.87x0.47infor :USBpure digital sound output,enjoy virtual tracks for XP Win7Linux WinCE 5.0 6.0)/Android2.1, 2.3, Features 23 field for modes, 16 rhythm for modesPackage Includes:1 PC x 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.