Amazing find!  I have been searching for a headset that will allow me to switch between pc speaker and headset without having to open control panel and change settings.  In this process, I have engaged in futile conversations with electronics staff at various retail stores.  I telephoned White Rabbit and explained my situation to Angel.  She immediately understood and provided a \"pro bono\" recommendation.  She did not require a home visit or ask for my credit card to answer my question.  She was polite, professional and not in the least condescending.  Thanks, White Rabbit!