Just look at the parts list they send and they show how it goes together. What were they thinking? It was terribly uncomfortable after a couple hours in the shoe! The material has a bouncy give that feels wonderful on the feet and absorbs shock under the heel. Plus, they are so comfortable! Has some dirt in the mesh and some fade from the sun but doesnt matter it keeps on going. Sound 9-10Phone Calls:Made a few calls using the earbuds. My original review was read and addressed by the seller. Once you connect these to a phone, they stay connected. Fazit:Ich bin sehr zufrieden mit diesen Kopfhörern da sie einen guten Klang haben, viel Bass und sehr preiswert sind. I finally decided to purchase a new pair and retire my old ones.