You can have a guard or take it off for a closer shave. I wear earbuds in the gym, often when walking. The sole came off one of the shoes! This helps keeps all of my coats and shoes perfectly organized in my closet. its not what id call easy to notice. While living in NY I wanted a pair of comfy casual walking shoes. I ordered the wrong size in these so my daughter didnt get to wear them, but the pair we received was very cute! Apparently the antenna is only on the right side of the handset, if the device (smartphone or notebook) is on the left side of your body, even at short distances, there will be transmission failures. And I like the replaceable cable concept - its a great design. I decided to buy another pair whilst I can, perhaps Ill use them in another year!