Plantronics MX250_Black Flex Grip Headset with Noise Canceling Boom Mic
N90Q | Reference class auto-calibrating noise cancelling headphones
Amazon.com: TruVoice 3.5mm Adapter Cable Compatible with All Plantronics and TruVoice QD Headsets - Connects with All Cell Phones and PC/Laptops with a Single 3.5mm Jack Port : Industrial & Scientific