he has used it daily since purchase on his key ring. They are so attractive and comfortable. When the 3D function in enabled even if there is no aux connected or BT is being used there is a mild ‘static’ sound and it’s a little irritating. Again, it wont get the hair as close as shaving but there are no bumps or razor burn and to me that is a great trade. I bought a pair online after someone stole the same pair in Hawaii. Shows the potential of what may come but this game get repetitive very fast. These are not active noise canceling IEMs. She likes very much. Fits perfectly in the drawer due to its expandability and holes 21 standard size spice bottles and there’s even a little bit of room if you have a few more to lay on their sides without covering up any of the 21. Your idea of speaker connections is a solder-tinned wire at the end of a $50 molded cable?PoS, totally disappointed, and thats coming from a Bose 901 to lifestyle convert.