SR Pro-1 Single microphone professional model. Privately communicate or transcribe in crystal clear sound anywhere with the industrys best voice isolation, speech recognition microphone. Engineered with proprietary micro sound-booth technology that ensures uncompromising sound quality and noise cancellation. Where other microphones fail to deliver the Pro-1 steps up to the plate with: Adjustable voice tuning permitting each individual to customize their mask for peak performance An internal breathing port allowing you to speak and breath naturally. Tried and tested industry sound proofing and noise cancellation properties 100% noise cancellation = zero background noise interference Patented ultra sensitive SmartMic microphone engineered for all ranges of voice tone. Complete accuracy even when you whisper Streamlined, lightweight and ergonomic design to relieve head, neck and hand stress Multiple hands-free options Best warranty and knowledgeable, no nonsense customer service The SR Pro series has the highest Dragon recognition accuracy rate of any microphone on the market. Whats the secret? Weve been engineering and manufacturing stenomask for over 75 years, in fact we invented the mask. SR (the SR stands for speech recognition) our 6th generation version is designed to work seamlessly with the latest digital technology, harnessing the boundless knowledge and experience that has been accumulated and refined over that time. Patented.