• Control Sound Volume of Playback Device, Recording Device on Windows 11, Windows 10, Windows 8, Windows 7 and Windows Vista. 
• Enable/Disable mute function on Windows 11, Windows 10, Windows 8, Windows 7 and Windows Vista. 
• When insert or remove USB sound device. it will fired DeviceChanged event on Windows 11 Windows 10, Windows 8, Windows 7 and Windows Vista. .
• Control Sound Volume ( Master Volume, Wave, CD Audio, LineIn, Microphone, Phone Line, PC Speaker, SW Synth) and Recording Control ( Microphone, CDAudio, LineIn).
• Support Display Unicode Audio device name.
• Enable/Disable mute function on Windows 10, Windows 8, Windows 7 and Windows Vista,  Windows XP, Windows 98, Windows Me. 
• Retrieve audio input devices information. (Mute Status, Min/Max/Current Volume Value)
• Object Base design, easily to use.
• Include c# 2019, c# 2010, VB.NET 2019, VB.NET 2010 , VB.Net 2003, VB Script, VB6  , VC 2010, VFP Sample source code.
• Compatible with any programming language that supports ActiveX (Access, Visual C , Visual Basic , Visual Foxpro, Delphi, .Net, etc.)