I used to use one of the ?traditional? pocket type armbands but the Touch ID doesn?t work through the plastic, no such problems with this as you have full access to the phone. So comfy, like walking on air. So thankfully it was nothing wrong with the speaker. I read from some reviews that people tore the material putting it together or that the material was cheap. It feels fairly sturdy. We buy a lot of dance shoes. I have plantar fasciitis and these shoes are extremely comfortable. I open the box, charged it up, then tried it on. They feature IPX8 water resistance so they wont break if you sweat heavily with them or take them into the shower, a charging case that has a little screen to indicate how much battery is left, and newly it now uses a type C connector to charge over the more flimsy Micro USB from before. The cords stiffen up in wintry air, rubbing against my outer clothing and intruding with their scratchy noise.