?Busylight & 24-Month Support?By simply pressing the busy button on the bluetooth pc headset that acts as a do-not-disturb sign, you can effectively focus on the tasks at hand and enjoy higher efficiency without being interrupted. If the usb wireless headset cannot work well or you have any problems, please kindly contact us at any time. You can enjoy a 24-month service for a pleasant shopping experience. Long Talking Time & Mute Button?With a large 500mAh battery, you can talk all you want. Keep talking all day with a battery that's built to go the distance. This massive battery supports up to 30 hours of talk time and 55 hours of continuous music time, and it charges fully in just 1.5 hours. you can monitor the battery level in your wireless headset through your phone. If you feel the need, you can quickly mute your voice during calls, just pressing the mute button on the microphone. ?EKSAtelecom CloudSoft Ear Cushions?Slip into over-the-ear comfort with EKSAtelecom CloudSoft Ear Cushions. They're soft, breathable, and gentle on your skin. Every feature is engineered for maximum comfort, and they fully cover the ears without applying as much pressure to your head as on-ear models. This ergonomic design of bluetooth headset keeps pressure off your head, preventing soreness or fatigue over time. You can relax in comfort and stay fully productive all day. ?Wide Compatibility Bluetooth 5.0 & USB Dongle?The latest Bluetooth tech and powerful built-in Qualcomm Chip ensure a lightning-fast and ultra-stable connection within 33 feet (or 10 meters) barrier-free range. Just simply with a USB dongle(included!), no extra hassle to connect this EKSAtelecom bluetooth headset with microphone to your desired bluetooth devices & PC laptop. ?EKSAtelecom VoicePure Technology?This cutting-edge AI-Powered Environmental Noise Cancellation [ENC] technology maximizes noise cancellation and optimizes audio with a noise reduction depth of over 44 dB. The microphone captures environmental noise and human voice, and the internal EKSAtelecom VoiceSmart Technology then dynamically detects and nullifies up to 99.8% ambient noise with a broad sound frequency range, and cancels it out before it reaches your ears.