This is an ELECOM wired earphone with a microphone for web calls. It's ideal for telework and online learning, featuring a mute function. The box is not included. Only the earphones, conversion cable, and ear pads will be shipped. Used a few times. Will be disinfected with alcohol before shipping. [Brand] ELECOM [Model Number] HS-EP17TBK [Connection Type] Wired (4-pole mini plug) [Functions] Mute function, with microphone [Type] Earplug type [Other] 3-pole x 2 conversion adapter included Although it is a used item, please consider this, understanding that it has been stored at home. Thank you. Headset Wired 4-pole φ3.5mm with microphone and mute switch HS-EP17TBK (Black) Brand: ELECOM Wearing style: Both ears, integrated left and right Plug shape: Mini plug Weight (g): 12.0 g Color: Black Earphone/Headphone functions: Microphone, Remote control