He loves the slippersThey fit well and are soft and comfortable I wanted to test the volume levels. Just cant accept the product with these flaws. Includes various sizes of ear plugs. I found myself inadvertently placing phone calls a few times as I bumbled the buttons, but thats probably more on my ham-fistedness than any fault of the controls. One hook is holding up a vintage, steel frame road bike. Its been three days and the smell has not come back. It will work for now. The idea is to conceal the loop under the shirt of coat which means it will be at least 4 or 5 inches away from the ear and this appears to be too much distance for this unit to be very effective. Super easy to install.