Poly Voyager 4320-M +USB-A to USB-C Cable +BT700 dongle

Foldable: No | Charging source: USB | Microphone frequency: 100 - 6800 Hz | Headset type: Binaural | Operating keys: Volume - | Headphone frequency: 20 - 20000 Hz | Continuous audio playback time: 47 h | Driver unit: 3.2 cm | Standby time: 1200 h | MP3-player: No | Works with the Google Assistant: Yes | Operating keys: Volume + | Wearing style: Head-band | Operating keys: Mute | Wireless charging: No | Battery operated: Yes | Operating keys: Answer/end call | Bluetooth profiles: HFP | Near Field Communication (NFC): No | Acoustic system: Closed | Microphone type: Boom | Bluetooth profiles: A2DP | Talk time: 24 h | Bluetooth profiles: HSP | Receiver included: Yes | Charging stand: Yes | Bluetooth profiles: AVRCP | Works with Apple Siri: Yes | Number of paired devices remembered: 8 | MEMS (Micro-Electro-Mechanical System) microphone: Yes | Product colour: Black | Bluetooth: Yes | Connectivity technology: Wireless | Battery technology: Lithium-Ion (Li-Ion) | Wireless range: 50 m | Windows operating systems supported: Windows 11 | Weight: 162 g | Cables included: USB Type-A to USB Type-C | Cables included: USB Type-A | Battery type: Built-in battery | USB connectivity: Yes | International Protection (IP) code: IPX4 | Recommended usage: Office/Call center | Quick start guide: Yes | Product type: Headset | USB connector: USB Type-A | Detachable cable: Yes | Carrying case: Yes | Depth: 67 mm | Width: 155 mm | Bluetooth version: 5.1 | Cable length: 1.5 m | Windows operating systems supported: Windows 10 | Height: 182 mm | Mac operating systems supported: Yes | Number of microphones: 2 | Battery recharge time: 1.6 h