[SUPERIOR CALL QUALITY] The Alto Solo's boom mic features cVc dual-mic noise-canceling technology that filters out unwanted environmental noise in both wired or wireless modes, ensuring your voice is clearly transmitted no matter where you are. [FULL CALL CONTROL] With multiple controls easily accessed on the headset, you can quickly mute your voice, answer / end calls, and adjust call volume all with one touch. In addition, the headset has an integrated busy light that lets others know not to disturb you when you are on a call. [ALL DAY COMFORT] The Alto Solo headset’s rotating mic can rotate 270° and allows you to wear it either on your left or right ear. The adjustable headband also enables you to find the perfect fit for your needs. [EXTENDED PLAYTIME] The battery of the Alto Solo lasts up to 20 hours and it provides you an all-day-long usage at work. When you charge the headset, simply place it on the charging stand to recharge them within two hours. [NEVER MISS A CALL] Stay connected to your phone and computer at the same time with the multipoint connection technology. Avantalk Alto Solo - Bluetooth 5.1 Wireless Headset with Noise-Canceling Microphone for PC, Computer, Laptop, Phone & Truckers with Mute Switch, Busy Light, Charging Dock, and Wired On Ear Headphones Mode