Plantronics MX500i 3-in-1 Headset Versatile 3-in-1 Headset for internet, cordless and mobile calls WindSmart microphone reduces unwanted wind or fast motion noise when moving quickly USB adapter included for Internet phones. Also works with cordless, IP and most mobile phones Unsurpassed, all-day comfort with lightweight under-the-ear Flex Grip design Easily adjust volume and mute with one-touch controls WindSmart microphone reduces unwanted wind or fast motion noise when moving quickly Clear sound for Internet and other calls, unique design, comfortable style for all-day wear USB adapter included for Internet phones. Also works with cordless, VIP and most mobile phones Unsurpassed, all-day comfort with lightweight under-the-ear Flex Grip design Easily adjust volume and mute with one-touch controls, perfect for a noisy home environment Headset cord length 46 inch (3ft 10)