(knowing how well it worked). If you take care it, I could see it lasting years. No me llego instructivo muy sencillo el empaque espero salga bien All in all, very satisfied with my order. ) This is just my personal opinion & experience wearing them for 2 months pretty much everyday! This head band has solved my problem! Im running the lights to my auxiliary fuse box with a 5 amp fuse (2 amps per light) with a 2-lead Nilight LED Light Bar Wiring Harness Kit. They are very durable. I was so disappointed it came torn I ordered two one was perfect this one was not, but i love the shoes i will get them in every color my ankles are wide and they fit very comfortably . The earbuds switches between calls and music and the mic sound quality is also good9.