Excerpt: I know this is a super tool and others do too because when I went to B&H to buy two more, they were sold out. Really handy to carry on a key chain in between two large keys which serve to protect the contacts.
Summary: Wear this around my neck at all times on the same chain that my pedometer uses. No issues wearing it in the shower, pool, etc. Small form factor and shape makes me feel like I'm carrying a nuclear launch key with me. Nifty!