Like most people who have a smartphone, I use mine every day. It comes with me pretty much everywhere, and I’d be a little lost without it. That’s why I love the Sinjimoru Silicone Cell Phone Strap.

I’ve seen countless straps in my many years in cell phone-crazy Japan, but this one beats them all. The so-called “Street Fighter IV Real Voice” is essentially a mini joystick that plays the voice ...