POLY Voyager 5200 USB-A Bluetooth Headset +BT700 dongle

Headphone frequency: 100 - 20000 Hz | Battery operated: Yes | Wearing style: Ear-hook | Microphone sensitivity: -38 dB | Microphone direction type: Omnidirectional | Microphone type: Boom | Microphone frequency: 100 - 6800 Hz | Headphone sensitivity: 90 dB | Charging source: USB | Depth: 53 mm | Protection features: Sweat resistant | Control type: Buttons | Warnings: Do not disassemble or modify the product yourself. | Height: 15 mm | Product colour: Black | Battery capacity: 122 mAh | Connectivity technology: Wireless | Battery recharge time: 1.5 h | Width: 91 mm | Battery technology: Lithium Polymer (LiPo) | USB connectivity: Yes | Ear coupling: Intraaural | Product type: Headset | Impedance: 32 Ω | Headset type: Monaural | Recommended usage: Office/Call center | Bluetooth: Yes | Operating temperature (T-T): 0 - 40 °C | Wireless range: 30 m | Bluetooth profiles: SSP2 | Bluetooth profiles: A2DP | Bluetooth profiles: HFP | USB connector: USB Type-A | Weight: 20 g | Bluetooth profiles: PBAP | Number of microphones: 4 | Bluetooth version: 5.0 | Battery type: Built-in battery | Bluetooth profiles: HSP | Talk time: 7 h