【NOISE REDUCTION & MIC MUTE】- Sunitec wireless headset for computer can block 99.9% of ambient noise even in noisy space, comes with advanced sound card and 40mm audio drivers, provides HD voice and world class speakers, designed for crystal clear calls and music. Its mic mute function for pc/mobile. Easily adjust volume +/- and multi function button for pairing/siri/on/off/answer cell phone calls. | 【Long Battery Life】Sunitec bluetooth computer headset with microphone is equipped with a 400mAh battery, which provides over 45 hours working time and 400 hours standby time after fully charged. Fully charged only need about 2 hours (Type-C charge cable) | 【USB Dongle & Wide Compatibility】Our bluetooth headset with microphone uses Qualcomm QCC3040 Bluetooth chip Version 5.1, which can offer stable and quick connection with Bluetooth devices. The aptX HD technology can provide great audio quality. Low Latency ensures your Bluetooth device can transmit real-time audio.If your computer has no Bluetooth function, you can use the Bluetooth dongle (QCC chipset) included. It is compatible with Skype, Zoom, MS teams, Google Meet and most popular software | 【Bluetooth 5.1 & Dual Connection】BLUETOOTH V5.1 Technology of this bluetooth headset ensure stable and fast transmission. Dual connectivity enables this computer headset with microphone to pair with two mobile phones at the same time. | 【All-Day Comfort & Warranty】- Sunitec computer headset with microphone usb wireless is equipped with soft ear pad provides a comfortable fit for intensive all-day intensive use. You can adjust the headband to the most comfortable size for your head. The 270° rotatable microphone is flexible that you can easily adjust it to the perfect angle to capture your voice clearly. Besides,1-year warranty and 24-hour support is included, If you have any questions please kindly contact our support.