Poly Voyager 4320 UC Bluetooth USB Type-C wireless headset with charging stand is designed to multitask. Enjoy all day wearing thanks to a comfortable and adjustable padded headband. Free yourself from your desk with the perfect entry-level Bluetooth wireless headset. Meet the Voyager 4300 UC Series. It's everything you need to stay productive and connected to all your devices whether at home or in the office. Long day of calls made easier with all-day comfort and dual-mic Acoustic Fence technology that eliminates background noise. Phenomenal flexibility, connectivity and freedom. Move easily between the home and the office with portable design and travel pouch. The dual-mic Acoustic Fence technology eliminates background noise. And with a mute button that is super easy to find and dynamic mute alert, you are in control. Multiple device connections are at your fingertips. PC/Mac, smartphone, desk phone (with office base, sold separately). No need for battery anxiety, if you need more charge just plug it in and use as a corded headset. Battery capacity: 350 mAh, Battery operated: Yes, Battery recharge time: 1.6 h, Battery technology: Lithium-Ion (Li-Ion), Battery type: Built-in battery, Continuous audio playback time: 47 h, Fast charging: Yes, Talk time: 24 h, Ear coupling: Supraaural, Microphone type: Boom, Audio adapters included: USB, Carrying case: Yes, Control type: Buttons, Headset type: Monaural, Operating keys: Answer/end call, Bluetooth pairing, Mute, Volume +, Volume -, Product colour: Black, Wearing style: Head-band, Bluetooth: Yes, Bluetooth profiles: A2DP, AVRCP, HFP, HSP, Bluetooth version: 5.2, USB connectivity: Yes, USB connector: USB Type-A, Mac operating systems supported: Yes, Windows operating systems supported: Yes.