Assez facile à assembler. Button Placement - I prefer the buttons to be on the outer lower edge of headphones for easier location and operation but that is a personal choice. The covers are mad of silicone which was kind of not clear by the picture but otherwise they are pretty good, especially for the price. Calidad perdecta y talla también. If you dont like these, youre too prissie! Then I just brush her, and wipe her down with a damp paper towel before toweling her dry. Shipping was excellent, product quality was surprisingly awesome, and it just works As soon as i put them in my ears they connected to my phone. They are like new again, washed up beautifully. Great for summer wear.