This is an audio-technica ATH-WS55 headphones. I used to use them a long time ago, but I haven't used them recently and have been storing them. I have confirmed that they work and sound clear. There is no box or instruction manual. - Brand: Audio-Technica - Type: Wired headphones - Left/Right Indicator: Yes, there is a left/right indicator The newly designed SOLID BASS SYSTEM is adopted, which suppresses unwanted resonance and enhances damping to achieve innovative low-frequency expression. Infinitely adjustable headband. Swivel mechanism for smart portability. 1.2m cord and L-shaped plug are ideal for portable devices. Thank you for looking.