AI NOISE CANCELLING MICROPHONE: Bluetooth headphones with microphone for pc can cancel up to 99.6% of background noise around you. ALL-DAY COMFORT & 270° ROTATABLE MIC: Wireless headset with mic for work is equipped with a comfortable on-ear earmuff and ultra-soft protein leather, 270° rotatable microphone can be used on the right or left side EASY TO OPERATE: Through the MFB button on the wireless bluetooth headset, you can easily answer or hang up calls (only useful for phone calls). Use Skype, Zoom or Microsoft Teams on the PC side, please set the headset up through the software WITH USB DONGLE: TECKNET usb wireless headset compatible with computers, pc, cell phones, and other bluetooth devices. If your desktop computer does not have bluetooth function, using the wireless headset with mic for work with usb adapter can solve this problem MUTE KEY WORK FOT PHONE CALL: With the mute key, you can click the mute button to turn the microphone on and off during a callonly for mobil