HD Stereo Audio for Clear Conversation: Built-in unidirectional microphone picks your voice loud and clear; noise reduction sound card lower noise output from devices. Custom-tuned 40mm speaker drivers bring crisp clear audio. All-day Comfort: The USB Headsetadopts widened oval earpads with memory foam and wrapped by breathable protein leather. Comfortably fit your head with the adjustable padded headband. Gentle Reminder: please take off the headphone every 1-2 hrs to get your ears relax. Retractable Microphone & Convenient Storage: The USB headset has a retractable mic which can be twisted discretionarily to ensure the ideal microphone placement. You can retract the mic for better experience when you don't need it; And you can easy to store the headset with foldable earmuffs 2-in-1 Line Control: You can connects to multiple devices using USB or 3.5mm audio jack, and easy to adjust volume, mute the microphone and the speaker. Keep total focus on the conversations with simple call control buttons. Broad Compatibility: The USB headset can be used for chatting, music and gamer. Wide compatible with Windows 2000/7/8/10/XP/Vista, Mac OS X, iOS, Android, Tablet PC. Perfect for Skype chat, conference calls, call center, webinar presentations, etc.