MOST COMFORT HEADSET: Ultra lightweight USB headphone with adjustable headband to fit all head sizes, a flexible boom mic, soft and high quality ear cushion enhance wear it all day without any discomfort. | PC headset works with Windows and most leading UC Platforms, Softphone. Ideal for Skype Chat, Business, Call Center, Conference calls, Dictation, Dragon speak, Online courses, Webinar presentations and more. | ULTRA DURABLE HEADSET: Precision design, quality plastics, uni-body headband construction, flexible metal mic boom make this Dual Ear USB Phone headset with mic more durable and sturdier. | CLEAR CALLS: Business-grade Wideband USB Headset, Digital Signal Processing (DSP) and Noise-Cancelling Mic for crystal-clear conversations, Acoustic Shock Protection(ASP) to protect your hearing. | Warranty: 12-month warranty, 24-hour customer service and professional technical team on standby. Note: The mute function is only available in USB connection mode.