?Global Warranty? 45 days money-back guarantee and 24 months warranty by Arama. Great ideal for online courses, Skype chat, call center, Webinars Presentations, Office, Business, Rosetta Stone, Dragon Speaking, Conference Calls and more. ?Easy to Use?Simply plug in and play, no installation needed. Intuitive inline controls allow you to easily adjust volume and mute the microphone. An indicator light shows when the microphone is muted. ?Wide Applicability?Compatible with both smartphones and computers, the headset has a 3.5mm connection for direct plug-in to your phone or tablet. The detachable USB inline controls also allow for easy control of PC and Mac calls. ?Long-lasting Comfort?Weighing just 5.72 ounces, this wired headset features an ergonomic design with an adjustable microphone boom, headband and soft, breathable faux-leather ear cushions to ensure that everyone finds the most comfortable fit and that it doesn't tax your ears, even after long periods of wear. ?Crystal Clear Calling?The USB headset uses advanced audio signal processing and built-in unidirectional microphone technology to minimize audio distortion and eliminate most of the surrounding background noise, bringing you crystal clear and natural calls.