Best prices on Cordless microphones in Headsets & Microphones. Check out BizRate for great deals on Headsets & Microphones from Plantronics, Panasonic and Gemini. Use BizRate's latest online shopping features to compare prices for Cordless microphones. Read product specifications, calculate tax and shipping charges, sort your results, and buy Computers & Software with confidence. Easily narrow your search and find the product that's perfect for you: Plantronics MX500i Corded PC/Mobile Headset with Microphone - Plantronics Headset for Cordless/Mobile (PL-M214C).