Rucan NFC Multifunctional Waterproof Intelligent Ring Smart Wear Finger Digital Ring

Features: No charge, programmable read-only lock function, 7-byte serial number clone protection
Uses: set up smart lock, card recharge, smart phone unlock, phone important file lock, transfer files.
Lock and unlock your Smart phone or tablet quickly, hide the app when you leave your smart phone alone

$2.99 Select options