These have served me very well, since I purchased them just under a year ago. I have recently upgraded, and thus, am wanting to let them go. Though I purchased them at the end of September, last year (2015), I only started using them in February of this year (2016), as I was building a home studio. They are in mint condition. Brand new, on amazon, they cost about $95.00 (tax included). I will let them go for $65, OBO. They come with the original box, as well as a 1/8-inch to 1/4-inch gold plated adapter. I will also be open to trades. Please text me at (613)400-9787, or email me here. Thanks Specs: - Closed ear design for maximum isolation - 50mm drivers for exceptional reproduction and wide dynamic range - 10Hz-30kHz frequency response, 32ohm impedance - Self-adjusting headband for a secure, comfortable fit