POLY Voyager 4320 USB-A Headset +BT700 dongle

Bluetooth: Yes | Ear coupling: Supraaural | Cable length: 1.5 m | Width: 155 mm | Country of origin: China | Quick start guide: Yes | Battery technology: Lithium-Ion (Li-Ion) | Product colour: Black | Microphone type: Boom | Package height: 55 mm | Country of origin: Mexico | Package depth: 210 mm | Headphone frequency: 20 - 20000 Hz | Battery operated: Yes | Driver unit: 3.2 cm | Mac operating systems supported: Yes | Height: 182 mm | Pouch: Yes | Package weight: 590 g | Standby time: 50 h | Cables included: USB Type-C | Wearing style: Head-band | Windows operating systems supported: Windows 10 | Depth: 67 mm | Continuous audio playback time: 47 h | Bluetooth profiles: HFP | Bluetooth profiles: HSP | Product type: Headset | Talk time: 24 h | Bluetooth profiles: A2DP | Bluetooth profiles: AVRCP | Package width: 186 mm | Headset type: Binaural | Weight: 122 g | Wireless range: 50 m | Recommended usage: Office/Call center | Connectivity technology: Wireless | Bluetooth version: 5.1 | Battery type: Built-in battery | Microphone frequency: 100 - 6800 Hz | Warnings: Do not disassemble or modify the product yourself. | Battery recharge time (charging case): 1.6 h | MEMS (Micro-Electro-Mechanical System) microphone: Yes