I discovered Nocs brand with these headphones and I must say I am impressed by their quality. The sound is excellent, well balanced, with serious just right. The silicone tips earbuds are very flexible and completely embrace the ear canal. Needless to push them a lot, they hold very well and perfectly cut out noise. These headphones offer an almost equivalent sound made a good helmet. The cord is flat is the new fashion, and it's true it sounds stronger than any son purposes. The small 3-button control is placed high enough so far unable chin. No need to look further. With HTC, the small command does not change the volume, I pass from one title to another. By cons, I can fully answer a call with the microphone operating perfectly. My daughter tried with his iPhone 3GS and got the same results as me. Perhaps his Iphone is it too "old" ... As the list of compatible devices is not provided in the instruction manual, hard to say who will benefit from the functions completely. Personally it does not bother me more than that to not be able to adjust the sound volume with the remote, but it's true that for the price, it is expected that everything is perfect. Nocs 4 provides additional pairs of silicone tips in different sizes as well as a mini-clip to secure the cord as close as is. Nothing more than a pesky cord dangling and clings to all he meets! Additional tips and tweezers are stored in a small fabric pouch and zipped quite thick, so less risk of loss. If necessary, it is also possible to store the headphones.