HP Poly Voyager Focus 2 UC Headset +USB- 80033865 7S4L6AA Product Description: Poly Voyager Focus 2 - headset Product Type: Headset - Bluetooth - wireless, wired - USB-A Recommended Use: Portable electronics, computer Colour: Black Headphones Form Factor: On-ear Connectivity Technology: Wireless, wired Wireless Technology: Bluetooth Bluetooth Version: Bluetooth 5.1 Sound Output Mode: Stereo Audio Specifications: Frequency Response 20 - 20000 Hz Microphone: Boom Microphone Operation Mode: MEMS-directional Microphones Included: 4 Controls: Mute, volume, power on/off, answer/end, ANC mode