Just plug it into your computer and start talking on the network. The affordable PC 7 USB features plug-and-play USB that is a breeze to use. Ideal for families. Its convenient one-sided style lets you stay in touch with your surroundings while talking on Skype. Also. Renowned Sennheiser sound is combined with an active noise-canceling microphone that ensures every word is heard clearly.- More value for your money: excellent durability and sound quality at an economical price. - Active noise cancellation: thanks to its microphone with active noise cancellation system. your voice will be heard clearly without you having to shout. - USB plug-and-play: just plug it into the USB port of your Mac or PC and start talking on the phone over the network. - Keep one ear free: great for families. its one-sided design keeps you in touch with your surroundings while you're talking on the web. - Light and comfortable: thanks to its light headband. you will even forget that you are using it. - Greater tranquility. thanks to its 2-year worldwide guarantee.