【AI Noise Cancellation & Mute Function】Eliminates 96% of ambient backgroung noise, this Bluetooth headphones with latest CVC noise reduction tech, people on the other end can focus on your voice. Microphone Mute button is on the mic, 270°boom mic with mute indicator. | 【QCC Chip & USB Dongle】Vonztek hands free office headset uses Qualcomm Bluetooth V5.0 Chip, offers stable and quick connection with Bluetooth devices. USB Audio Dongle is also coming in the package, which allows you to connect the headphone even with non-Bluetooth devices like PC/computer in low latency. Connectivity range up to 50 feet/15m. In open area, up to 65 feet/20m. | 【Siri & Dual Connect】VBT786C-D Computer headset support SIRI and other voice assistants on mobile devices, Dual connection is also supported, you can easily connect with 2 devices. Compatible with cell phones/tablet/iPhone/iPad/PC and other devices with/without Bluetooth function. Ideal for work from home and call center/telework/online meetings/remote work/online classes. | 【All Day Battery & Charging Stand】This bluetooth wireless headphones equipped with low power consumption chip, supports 26hrs using time and over 120 hrs standyby time, satisfy your weekly work. Portable charging dock is also coming with the Bluetooth headset, with a storage bag for your trip, you can simply put the headsets on the charging dock or use the type-c port for 2 hrs full charing. | 【Comfort & Universal Compatibility】Vonztek headsets with microphone uses soft memory leather earpads and adjustable headband with cushion. This Bluetooth wireless headset suitable for Home, Buisness, Classrooms, Skype, Zoom, Ms Teams, Webex, Whatsapp, Voip, Webinars, Voice Recognition. The bluetooth headset with mic works on iOS/Windows/Mac OS/Android. | 【Support & Note】VONZTEK offers 12-MONTH warranty. If you have any questions or unsatisfied, please feel free to contact our professional service team at any time. Note: When using some third-party applications such as Skype, Zoom, Teams ect, you need to answer the incoming call on the connected device(apps), not on the over-ear headphones.