:
Symbol.Audio.Device MyDevice = (Symbol.Audio.Device)Symbol.StandardForms.SelectDevice.Select(
Symbol.Audio.Controller.Title,
Symbol.Audio.Device.AvailableDevices);
Symbol.Audio.StandardAudio MyAudioDevice = new Symbol.Audio.StandardAudio(MyDevice);
MyAudioDevice.BeeperVolume = NewLevel;
MyAudioDevice.Dispose();
MyAudioDevice = null;
MyDevice = null;