This ring lets you whisper to your phone, because sometimes we need to use our inside voices

It's a ring with a proximity sensor and microphone that activates when you raise it to your mouth. So when you want to talk to your assistant, you can simply mutter toward your knuckle and have it understand you.

There's even a button that, if tapped five times at once, will trigger a system to alert your contacts of an emergency and record ambient sound.

Read at Engadget