This headphone mount sticks incredibly well and is able to hold a set of headphones for long amount of time; it is so good in fact that if you were to remove it to relocate it somewhere else, you would need some sort of thin wedge and a lot of force to remove it.
I learnt this the hard way, since I put it too close to where my legs would be so when I tried to remove it with a thin wedge I accidentally scratched my desk and now it has blemishes. I had to order another one because it lost it's stickiness. It's not a negative of the product of course, but please make sure it is out of the way of yourself otherwise you might damage your desk when trying to remove it and avoid having to buy another one!
There is a quality finish to this product. The 3M tape holds great with two pairs of headphones I have hanging and the flexible rubber material used is gentle on them. I highly recommended this product.