This is a Y-cable from Hosa. It was purchased new and has been stored without being used. 〈Product Description〉 This is a Y-cable featuring a stereo phone male (1/4” TRS) and two stereo phone females (1/4” TRS). It can duplicate one stereo signal into two stereo signals. It can also be used as a headphone adapter to connect two headphones to a single headphone output. Plugs: Stereo phone male – Stereo phone female x2