Thank you for viewing. This is a Lenovo Wireless VoIP Headset. It has only been used 2-3 times, so it's practically new. It supports both Bluetooth and USB connections, so you can use it in any situation, whether for everyday use or business. The headset itself, USB receiver, Type-C cable, and the included bag will be shipped. Lenovo Official Price: 16,500 yen Product details are as follows: Microsoft Teams certified Can be used with other UC platforms (Zoom, Google Meet (hangout), Google Voice, Slack, Goto Meeting, Wechat, Cisco Webex) Equipped with 3 microphones Enhanced environmental noise cancellation, achieving both clear audio and usability Lightweight, 140g Bluetooth 5.3 connection (*) or Bluetooth connection via USB Type-A dongle (included) - 2 connection methods Plug and play compatible USB Type-C charging cable for charging this headset is included Fully charged in about 2 hours. When fully charged, it can be used for approximately 60 hours of playback and 31 hours of talk time Can be used for calls and playback while charging the headset Replacement ear cups available (sold separately 4XD1M80021) Equipped with various buttons (power/Bluetooth pairing, volume +/-, Teams, answer/end, mute ON/OFF, ANC on/off) Product number: 4XD1M80020