TimeR Smart Wearable Device Titanium Multifunction Magic Ring for NFC Tag Sticker Android Mobile Phone - Size #8 Black Color Lock and Unlock Your Smart Phone or Tablet Quickly, Hide the App When You Leave Your Smart Phone Alone Share & Transfer Information (Send the Private Message/Picture/Business Card/ Website Link to the Person You Want to Share by a Simple Touch) Control Applications (You Can Write a Fixed Process List Ahead of the Time, and the Ring will Start the Applications Each Time by Simply Touch Water Resistant and No Charging Required The Perfect Combination of Fashion and Technology. 2 kinds of Crystal Diamond for Man and Woman