These are brand new, never opened, though the plastic has seperated slightly from the backing.

Here's what the AI has to say:

Enjoy your music in style with these brand new Panasonic RP-HT21 Comfort Fit Stereo Headphones. The sleek silver and black design of these headphones, along with the adjustable headband, make them comfortable to wear for extended periods of time. Featuring ear-pad (on the ear) form factor, 30mm driver units, and 24 ohm impedance, these headphones deliver excellent sound quality. The 4.5 ft long cable length, 3.5mm jack connectivity, and lightweight construction make them easy to carry around. These headphones do not come with a microphone, making them perfect for private listening. Get your hands on these high-quality headphones today!