works very well. I will be buying other colors. I use this to listen to podcasts at night while still being able to hear what is around me. The only issue is that, because it is moulded to the foot, it sometimes sticks before releasing with a farty noise. Additional to the quick assembly, I did not need to use any tools. Leather uppers feel and look great. I love love love these. I ordered these with a giftcard I received as a house warming gift, because I like to use refillable glassbottles, but having them standing upright takes a lot of usable space out of my fridge. The in ear monitors are excellent quality. You really couldnt think they could be comfortable at first glance but after putting them and wearing them all day I am sold.