INCLUDED COMPONENTS & COMPATIBILITY: Every Delton Executive Wireless Headset comes with an auto-pair USB Dongle, a carrying case/stand, a USB charging cable that works directly with the headset, and 6 different sized earpieces to make sure your headset sits comfortably. The Delton 90X is a UC (Universal Communication) standard headset. If using it with a desktop phone, check your phone's user manual to ensure it is compatible with UC headsets. COMFORTABLE & INTUITIVE: The Delton Executive Wireless Headset enjoys an ergonmic design for maximum comfort. The soft ultralight body material will fit snugly over any sized ear and be nearly unnoticed. Choose from 6 different earpices (included) to find a fit that's perfect for you. Finally, easy to reach buttons make call control such as mute, volume, and answer/end intuitive. CONNECTIVITY: Pair your Delton Executive Headset with up to 2 different devices. The included USB Dongle will auto-pair your Delton Executive Headset with any PC or laptop. You can also pair your headset with any iPhone or Android device. Answer or begin calls on one device then seamlessly change over to manage conversations in the other. WORKS WHEN YOU DO: Go from empty to 100% battery in just 3 hours, or get over an hour of talk time with just 7 minutes of charging! The Delton Executive Wireless headset features the best-in-class battery performance with 100 hours of talk time and 90 days standby time. No matter what the urgency, Delton helps you get the job done. CLEAR CONVERSATIONS: You take your business seriously, and we take audio seriously. Whether you work from home, the office, or on the road, Delton's exclusive noise canceling technology will keep your calls clear and keep you sounding professional.