Logitech Over-the-headワイヤレスヘッドセットh600 _ - AliExpress Mobile
Amazon.co.jp: EKSA Professional Wireless Headset, Bluetooth Headset, with USB Dongle, Call Noise Reduction, Single Directional, Built-in Microphone, Office Headset, 150g Ultra Lightweight, Up to 45 Hours of Use, Charging Stand, Hands-Free Calling,