As the newest addition to the Spectra family, the SP-VC5 has all the quality features you have come to love about the Spectra under chin headsets plus more. The Spectra SP-VC5 Deluxe Twin Speaker Headset comes with a stereo/mono switch and in-line volume control on a 5 ft. cord. Learn more about these Spectra headphones today. With the stereo/mono switch, all you need is one headset for all your analog or digital transcription needs. These transcription headphones with volume control work with most sound sources that accept a 3.5mm plug. This flexibility is important during this transitional time when many of us are typing reports dictated on various media formats. You can confidently use the Spectra SP-VC5 for your transcriber then move it to your computer for digital transcription. Just one headset for all your transcribing needs.