POLY Voyager 4320 UC Stereo USB-A Headset +BT700 USB-A Adapter +Charging Stand

Package weight: 641 g | Bluetooth: Yes | Width: 155 mm | Cables included: USB Type-A | Bluetooth version: 5.1 | Connectivity technology: Wireless | Battery type: Built-in battery | Package height: 115 mm | Height: 182 mm | Ear coupling: Supraaural | Product type: Headset | Standby time: 50 h | Battery operated: Yes | Pouch: Yes | Depth: 67 mm | Driver unit: 3.2 cm | Battery technology: Lithium-Ion (Li-Ion) | Product colour: Black | Mac operating systems supported: Yes | Headset type: Binaural | Headphone frequency: 20 - 20000 Hz | Wearing style: Head-band | Cable length: 1.5 m | Recommended usage: Calls/Music | Windows operating systems supported: Windows 10 | Package depth: 188 mm | Weight: 162 g | Bluetooth profiles: HFP | Talk time: 24 h | Package width: 210 mm | Charging source: USB | Receiver included: Yes | Battery recharge time: 1.6 h | Microphone type: Boom | Microphone frequency: 100 - 6800 Hz | Bluetooth profiles: HSP | Bluetooth profiles: AVRCP | Bluetooth profiles: A2DP | Continuous audio playback time: 47 h | Charging stand: Yes | Warnings: Do not disassemble or modify the product yourself. | MEMS (Micro-Electro-Mechanical System) microphone: Yes